diff --git a/antd-tools/getTSCommonConfig.js b/antd-tools/getTSCommonConfig.js
index d935888c4..f47249d89 100644
--- a/antd-tools/getTSCommonConfig.js
+++ b/antd-tools/getTSCommonConfig.js
@@ -4,7 +4,7 @@ const fs = require('fs');
 const assign = require('object-assign');
 const { getProjectPath } = require('./utils/projectHelper');
 
-module.exports = function () {
+module.exports = function() {
   let my = {};
   if (fs.existsSync(getProjectPath('tsconfig.json'))) {
     my = require(getProjectPath('tsconfig.json'));
diff --git a/antd-tools/gulpfile.js b/antd-tools/gulpfile.js
index 2e99c1c51..b44d485f7 100644
--- a/antd-tools/gulpfile.js
+++ b/antd-tools/gulpfile.js
@@ -80,7 +80,7 @@ function compileTs(stream) {
   return stream
     .pipe(ts(tsConfig))
     .js.pipe(
-      through2.obj(function (file, encoding, next) {
+      through2.obj(function(file, encoding, next) {
         // console.log(file.path, file.base);
         file.path = file.path.replace(/\.[jt]sx$/, '.js');
         this.push(file);
@@ -146,7 +146,7 @@ function compile(modules) {
   const less = gulp
     .src(['components/**/*.less'])
     .pipe(
-      through2.obj(function (file, encoding, next) {
+      through2.obj(function(file, encoding, next) {
         this.push(file.clone());
         if (
           file.path.match(/\/style\/index\.less$/) ||
diff --git a/antd-tools/utils/getChangelog.js b/antd-tools/utils/getChangelog.js
index b22396784..381183e94 100644
--- a/antd-tools/utils/getChangelog.js
+++ b/antd-tools/utils/getChangelog.js
@@ -1,7 +1,10 @@
 const fs = require('fs');
 
 module.exports = function getChangelog(file, version) {
-  const lines = fs.readFileSync(file).toString().split('\n');
+  const lines = fs
+    .readFileSync(file)
+    .toString()
+    .split('\n');
   const changeLog = [];
   const startPattern = new RegExp(`^## ${version}`);
   const stopPattern = /^## /; // 前一个版本
diff --git a/antd-tools/utils/getRunCmdEnv.js b/antd-tools/utils/getRunCmdEnv.js
index c7b474bb3..24d8ca99e 100644
--- a/antd-tools/utils/getRunCmdEnv.js
+++ b/antd-tools/utils/getRunCmdEnv.js
@@ -11,7 +11,13 @@ module.exports = function getRunCmdEnv() {
   const nodeModulesBinDir = path.join(__dirname, '../../node_modules/.bin');
 
   Object.entries(env)
-    .filter(v => v.slice(0, 1).pop().toLowerCase() === 'path')
+    .filter(
+      v =>
+        v
+          .slice(0, 1)
+          .pop()
+          .toLowerCase() === 'path',
+    )
     .forEach(v => {
       const key = v.slice(0, 1).pop();
       env[key] = env[key] ? `${nodeModulesBinDir}:${env[key]}` : nodeModulesBinDir;
diff --git a/antd-tools/utils/projectHelper.js b/antd-tools/utils/projectHelper.js
index 79cdb57cc..3b9a19c9f 100644
--- a/antd-tools/utils/projectHelper.js
+++ b/antd-tools/utils/projectHelper.js
@@ -20,7 +20,7 @@ function injectRequire() {
   const Module = require('module');
 
   const oriRequire = Module.prototype.require;
-  Module.prototype.require = function (...args) {
+  Module.prototype.require = function(...args) {
     const moduleName = args[0];
     try {
       return oriRequire.apply(this, args);
diff --git a/components/_util/hooks/useConfigInject.ts b/components/_util/hooks/useConfigInject.ts
index dc19f5fec..93f18e1f8 100644
--- a/components/_util/hooks/useConfigInject.ts
+++ b/components/_util/hooks/useConfigInject.ts
@@ -18,6 +18,7 @@ export default (
   form?: ComputedRef<{
     requiredMark?: RequiredMark;
   }>;
+  autoInsertSpaceInButton: ComputedRef<Boolean>;
   renderEmpty?: ComputedRef<(componentName?: string) => VNodeChild | JSX.Element>;
 } => {
   const configProvider = inject<UnwrapRef<ConfigProviderProps>>(
@@ -26,6 +27,7 @@ export default (
   );
   const prefixCls = computed(() => configProvider.getPrefixCls(name, props.prefixCls));
   const direction = computed(() => configProvider.direction);
+  const autoInsertSpaceInButton = computed(() => configProvider.autoInsertSpaceInButton);
   const renderEmpty = computed(() => configProvider.renderEmpty);
   const space = computed(() => configProvider.space);
   const pageHeader = computed(() => configProvider.pageHeader);
@@ -41,6 +43,7 @@ export default (
     space,
     pageHeader,
     form,
+    autoInsertSpaceInButton,
     renderEmpty,
   };
 };
diff --git a/components/button/__tests__/__snapshots__/index.test.js.snap b/components/button/__tests__/__snapshots__/index.test.js.snap
index c97904fa7..59584b43b 100644
--- a/components/button/__tests__/__snapshots__/index.test.js.snap
+++ b/components/button/__tests__/__snapshots__/index.test.js.snap
@@ -59,7 +59,7 @@ exports[`Button should not render as link button when href is undefined 1`] = `
 `;
 
 exports[`Button should support link button 1`] = `
-<a target="_blank" class="ant-btn" href="http://ant.design">
+<a class="ant-btn" href="http://ant.design" target="_blank">
   <!----><span>link button</span>
 </a>
 `;
diff --git a/components/button/__tests__/index.test.js b/components/button/__tests__/index.test.js
index 8dae65b94..5134c7aa5 100644
--- a/components/button/__tests__/index.test.js
+++ b/components/button/__tests__/index.test.js
@@ -2,9 +2,9 @@ import Button from '../index';
 import SearchOutlined from '@ant-design/icons-vue/SearchOutlined';
 import { mount } from '@vue/test-utils';
 import { nextTick } from 'vue';
-import { asyncExpect } from '@/tests/utils';
-import { sleep } from '../../../tests/utils';
-import mountTest from '../../../tests/shared/mountTest';
+import { asyncExpect, sleep } from '@/tests/utils';
+import mountTest from '@/tests/shared/mountTest';
+import { resetWarned } from '../../_util/warning';
 
 describe('Button', () => {
   mountTest(Button);
@@ -27,7 +27,7 @@ describe('Button', () => {
     expect(wrapper.find('.ant-btn-primary').exists()).toBe(true);
   });
 
-  it('renders Chinese characters correctly', done => {
+  it('renders Chinese characters correctly', (done) => {
     const wrapper = mount({
       render() {
         return <Button>按钮</Button>;
@@ -247,4 +247,51 @@ describe('Button', () => {
       wrapper.unmount();
     }).not.toThrow();
   });
+
+  it('should warning when pass type=link and ghost=true', () => {
+    resetWarned();
+    const warnSpy = jest.spyOn(console, 'error').mockImplementation(() => {});
+    mount({
+      render() {
+        return <Button type="link" ghost />;
+      },
+    });
+    expect(warnSpy).toHaveBeenCalledWith(
+      "Warning: [ant-design-vue: Button] `link` or `text` button can't be a `ghost` button.",
+    );
+    warnSpy.mockRestore();
+  });
+
+  it('should warning when pass type=text and ghost=true', () => {
+    resetWarned();
+    const warnSpy = jest.spyOn(console, 'error').mockImplementation(() => {});
+    mount({
+      render() {
+        return <Button type="text" ghost />;
+      },
+    });
+    expect(warnSpy).toHaveBeenCalledWith(
+      "Warning: [ant-design-vue: Button] `link` or `text` button can't be a `ghost` button.",
+    );
+    warnSpy.mockRestore();
+  });
+
+  it('should not redirect when button is disabled', async () => {
+    const onClick = jest.fn();
+    const wrapper = mount({
+      render() {
+        return (
+          <Button href="https://ant.design" onClick={onClick} disabled>
+            click me
+          </Button>
+        );
+      },
+    });
+    await asyncExpect(() => {
+      wrapper.trigger('click');
+    });
+    await asyncExpect(() => {
+      expect(onClick).not.toHaveBeenCalled();
+    });
+  });
 });
diff --git a/components/button/__tests__/wave.test.js b/components/button/__tests__/wave.test.js
new file mode 100644
index 000000000..d10b2374c
--- /dev/null
+++ b/components/button/__tests__/wave.test.js
@@ -0,0 +1,79 @@
+import Button from '../index';
+import { mount } from '@vue/test-utils';
+import { asyncExpect, sleep } from '@/tests/utils';
+
+describe('click wave effect', () => {
+  async function clickButton(wrapper) {
+    await asyncExpect(() => {
+      wrapper.find('.ant-btn').trigger('click');
+    });
+    wrapper.find('.ant-btn').element.dispatchEvent(new Event('transitionstart'));
+    await sleep(20);
+    wrapper.find('.ant-btn').element.dispatchEvent(new Event('animationend'));
+    await sleep(20);
+  }
+
+  it('should have click wave effect for primary button', async () => {
+    const wrapper = mount({
+      render() {
+        return <Button type="primary">button</Button>;
+      },
+    });
+    await clickButton(wrapper);
+    expect(wrapper.find('.ant-btn').attributes('ant-click-animating-without-extra-node')).toBe(
+      'true',
+    );
+  });
+
+  it('should have click wave effect for default button', async () => {
+    const wrapper = mount({
+      render() {
+        return <Button>button</Button>;
+      },
+    });
+    await clickButton(wrapper);
+    expect(wrapper.find('.ant-btn').attributes('ant-click-animating-without-extra-node')).toBe(
+      'true',
+    );
+  });
+
+  it('should not have click wave effect for link type button', async () => {
+    const wrapper = mount({
+      render() {
+        return <Button type="link">button</Button>;
+      },
+    });
+    await clickButton(wrapper);
+    expect(wrapper.find('.ant-btn').attributes('ant-click-animating-without-extra-node')).toBe(
+      undefined,
+    );
+  });
+
+  it('should not have click wave effect for text type button', async () => {
+    const wrapper = mount({
+      render() {
+        return <Button type="text">button</Button>;
+      },
+    });
+    await clickButton(wrapper);
+    expect(wrapper.find('.ant-btn').attributes('ant-click-animating-without-extra-node')).toBe(
+      undefined,
+    );
+  });
+
+  it('should handle transitionstart', async () => {
+    const wrapper = mount({
+      render() {
+        return <Button type="primary">button</Button>;
+      },
+    });
+    await clickButton(wrapper);
+    const buttonNode = wrapper.find('.ant-btn').element;
+    buttonNode.dispatchEvent(new Event('transitionstart'));
+    expect(wrapper.find('.ant-btn').attributes('ant-click-animating-without-extra-node')).toBe(
+      'true',
+    );
+    wrapper.unmount();
+    buttonNode.dispatchEvent(new Event('transitionstart'));
+  });
+});
diff --git a/components/button/button-group.tsx b/components/button/button-group.tsx
index 842be3c2d..66494438d 100644
--- a/components/button/button-group.tsx
+++ b/components/button/button-group.tsx
@@ -1,53 +1,49 @@
-import { defineComponent, inject } from 'vue';
-import { filterEmpty, getSlot } from '../_util/props-util';
+import { computed, defineComponent } from 'vue';
+import { flattenChildren } from '../_util/props-util';
 import PropTypes from '../_util/vue-types';
-import { defaultConfigProvider } from '../config-provider';
-import { tuple } from '../_util/type';
+import useConfigInject from '../_util/hooks/useConfigInject';
 
-const ButtonGroupProps = {
+import type { ExtractPropTypes, PropType } from 'vue';
+import type { SizeType } from '../config-provider';
+
+const buttonGroupProps = {
   prefixCls: PropTypes.string,
-  size: PropTypes.oneOf(tuple('small', 'large', 'default')),
+  size: {
+    type: String as PropType<SizeType>,
+  },
 };
-export { ButtonGroupProps };
+export { buttonGroupProps };
+
+export type ButtonGroupProps = Partial<ExtractPropTypes<typeof buttonGroupProps>>;
+
 export default defineComponent({
   name: 'AButtonGroup',
-  props: ButtonGroupProps,
-  setup() {
-    const configProvider = inject('configProvider', defaultConfigProvider);
-    return {
-      configProvider,
+  props: buttonGroupProps,
+  setup(props, { slots }) {
+    const { prefixCls, direction } = useConfigInject('btn-group', props);
+    const classes = computed(() => {
+      const { size } = props;
+      // large => lg
+      // small => sm
+      let sizeCls = '';
+      switch (size) {
+        case 'large':
+          sizeCls = 'lg';
+          break;
+        case 'small':
+          sizeCls = 'sm';
+          break;
+        default:
+          break;
+      }
+      return {
+        [`${prefixCls.value}`]: true,
+        [`${prefixCls.value}-${sizeCls}`]: sizeCls,
+        [`${prefixCls.value}-rtl`]: direction.value === 'rtl',
+      };
+    });
+    return () => {
+      return <div class={classes.value}>{flattenChildren(slots.default?.())}</div>;
     };
   },
-  data() {
-    return {
-      sizeMap: {
-        large: 'lg',
-        small: 'sm',
-      },
-    };
-  },
-  render() {
-    const { prefixCls: customizePrefixCls, size } = this;
-    const getPrefixCls = this.configProvider.getPrefixCls;
-    const prefixCls = getPrefixCls('btn-group', customizePrefixCls);
-
-    // large => lg
-    // small => sm
-    let sizeCls = '';
-    switch (size) {
-      case 'large':
-        sizeCls = 'lg';
-        break;
-      case 'small':
-        sizeCls = 'sm';
-        break;
-      default:
-        break;
-    }
-    const classes = {
-      [`${prefixCls}`]: true,
-      [`${prefixCls}-${sizeCls}`]: sizeCls,
-    };
-    return <div class={classes}>{filterEmpty(getSlot(this))}</div>;
-  },
 });
diff --git a/components/button/button.tsx b/components/button/button.tsx
index 7ef5a6d7d..7d31284d0 100644
--- a/components/button/button.tsx
+++ b/components/button/button.tsx
@@ -1,85 +1,81 @@
-import type { ExtractPropTypes, VNode } from 'vue';
-import { defineComponent, inject, Text } from 'vue';
+import {
+  computed,
+  defineComponent,
+  onBeforeUnmount,
+  onMounted,
+  onUpdated,
+  Ref,
+  ref,
+  Text,
+  watch,
+  watchEffect,
+} from 'vue';
 import Wave from '../_util/wave';
-import LoadingOutlined from '@ant-design/icons-vue/LoadingOutlined';
 import buttonTypes from './buttonTypes';
-import { getSlot, getComponent } from '../_util/props-util';
-import { defaultConfigProvider } from '../config-provider';
-// eslint-disable-next-line no-console
+import LoadingOutlined from '@ant-design/icons-vue/LoadingOutlined';
+import { flattenChildren, getPropsSlot } from '../_util/props-util';
+import useConfigInject from '../_util/hooks/useConfigInject';
+import devWarning from '../vc-util/devWarning';
+
+import type { ButtonType } from './buttonTypes';
+import type { VNode } from 'vue';
+
+type Loading = boolean | number;
+
 const rxTwoCNChar = /^[\u4e00-\u9fa5]{2}$/;
 const isTwoCNChar = rxTwoCNChar.test.bind(rxTwoCNChar);
 const props = buttonTypes();
 
-export type ButtonProps = Partial<ExtractPropTypes<ReturnType<typeof buttonTypes>>>;
+function isUnborderedButtonType(type: ButtonType | undefined) {
+  return type === 'text' || type === 'link';
+}
 
 export default defineComponent({
   name: 'AButton',
   inheritAttrs: false,
   __ANT_BUTTON: true,
   props,
-  setup() {
-    return {
-      configProvider: inject('configProvider', defaultConfigProvider),
-      children: [],
-      iconCom: undefined,
-      delayTimeout: undefined,
-    };
-  },
-  data() {
-    return {
-      sizeMap: {
-        large: 'lg',
-        small: 'sm',
-      },
-      sLoading: false,
-      hasTwoCNChar: false,
-    };
-  },
-  watch: {
-    loading: {
-      handler(val, preVal) {
-        if (preVal && typeof preVal !== 'boolean') {
-          clearTimeout(this.delayTimeout);
-        }
-        if (val && typeof val !== 'boolean' && val.delay) {
-          this.delayTimeout = setTimeout(() => {
-            this.sLoading = !!val;
-          }, val.delay);
-        } else {
-          this.sLoading = !!val;
-        }
-      },
-      immediate: true,
-    },
-  },
-  mounted() {
-    this.fixTwoCNChar();
-  },
-  updated() {
-    this.fixTwoCNChar();
-  },
-  beforeUnmount() {
-    if (this.delayTimeout) {
-      clearTimeout(this.delayTimeout);
-    }
-  },
-  methods: {
-    getClasses() {
-      const {
-        prefixCls: customizePrefixCls,
-        type,
-        shape,
-        size,
-        hasTwoCNChar,
-        sLoading,
-        ghost,
-        block,
-        $attrs,
-      } = this;
-      const getPrefixCls = this.configProvider.getPrefixCls;
-      const prefixCls = getPrefixCls('btn', customizePrefixCls);
-      const autoInsertSpace = this.configProvider.autoInsertSpaceInButton !== false;
+  slots: ['icon'],
+  emits: ['click'],
+  setup(props, { slots, attrs, emit }) {
+    const { prefixCls, autoInsertSpaceInButton, direction } = useConfigInject('btn', props);
 
+    const buttonNodeRef = ref<HTMLElement>(null);
+    const delayTimeoutRef = ref(undefined);
+    let isNeedInserted = false;
+
+    const innerLoading: Ref<Loading> = ref(false);
+    const hasTwoCNChar = ref(false);
+
+    const autoInsertSpace = computed(() => autoInsertSpaceInButton.value !== false);
+
+    // =============== Update Loading ===============
+    const loadingOrDelay = computed(() =>
+      typeof props.loading === 'object' && props.loading.delay
+        ? props.loading.delay || true
+        : !!props.loading,
+    );
+
+    watch(
+      loadingOrDelay,
+      val => {
+        clearTimeout(delayTimeoutRef.value);
+        if (typeof loadingOrDelay.value === 'number') {
+          delayTimeoutRef.value = window.setTimeout(() => {
+            innerLoading.value = val;
+          }, loadingOrDelay.value);
+        } else {
+          innerLoading.value = val;
+        }
+      },
+      {
+        immediate: true,
+      },
+    );
+
+    const classes = computed(() => {
+      const { type, shape, size, ghost, block, danger } = props;
+      const pre = prefixCls.value;
       // large => lg
       // small => sm
       let sizeCls = '';
@@ -93,43 +89,46 @@ export default defineComponent({
         default:
           break;
       }
-      const iconType = sLoading ? 'loading' : this.iconCom;
       return {
-        [$attrs.class as string]: $attrs.class,
-        [`${prefixCls}`]: true,
-        [`${prefixCls}-${type}`]: type,
-        [`${prefixCls}-${shape}`]: shape,
-        [`${prefixCls}-${sizeCls}`]: sizeCls,
-        [`${prefixCls}-icon-only`]: this.children.length === 0 && iconType,
-        [`${prefixCls}-loading`]: sLoading,
-        [`${prefixCls}-background-ghost`]: ghost || type === 'ghost',
-        [`${prefixCls}-two-chinese-chars`]: hasTwoCNChar && autoInsertSpace,
-        [`${prefixCls}-block`]: block,
+        [`${pre}`]: true,
+        [`${pre}-${type}`]: type,
+        [`${pre}-${shape}`]: shape,
+        [`${pre}-${sizeCls}`]: sizeCls,
+        [`${pre}-loading`]: innerLoading.value,
+        [`${pre}-background-ghost`]: ghost && !isUnborderedButtonType(type),
+        [`${pre}-two-chinese-chars`]: hasTwoCNChar.value && autoInsertSpace.value,
+        [`${pre}-block`]: block,
+        [`${pre}-dangerous`]: !!danger,
+        [`${pre}-rtl`]: direction.value === 'rtl',
       };
-    },
-    fixTwoCNChar() {
+    });
+
+    const fixTwoCNChar = () => {
       // Fix for HOC usage like <FormatMessage />
-      const node = this.$refs.buttonNode as HTMLElement;
-      if (!node) {
+      const node = buttonNodeRef.value!;
+      if (!node || autoInsertSpaceInButton.value === false) {
         return;
       }
       const buttonText = node.textContent;
-      if (this.isNeedInserted() && isTwoCNChar(buttonText)) {
-        if (!this.hasTwoCNChar) {
-          this.hasTwoCNChar = true;
+
+      if (isNeedInserted && isTwoCNChar(buttonText)) {
+        if (!hasTwoCNChar.value) {
+          hasTwoCNChar.value = true;
         }
-      } else if (this.hasTwoCNChar) {
-        this.hasTwoCNChar = false;
+      } else if (hasTwoCNChar.value) {
+        hasTwoCNChar.value = false;
       }
-    },
-    handleClick(event: Event) {
-      const { sLoading } = this.$data;
-      if (sLoading) {
+    };
+    const handleClick = (event: Event) => {
+      // https://github.com/ant-design/ant-design/issues/30207
+      if (innerLoading.value || props.disabled) {
+        event.preventDefault();
         return;
       }
-      this.$emit('click', event);
-    },
-    insertSpace(child: VNode, needInserted: boolean) {
+      emit('click', event);
+    };
+
+    const insertSpace = (child: VNode, needInserted: boolean) => {
       const SPACE = needInserted ? ' ' : '';
       if (child.type === Text) {
         let text = (child.children as string).trim();
@@ -139,53 +138,78 @@ export default defineComponent({
         return <span>{text}</span>;
       }
       return child;
-    },
-    isNeedInserted() {
-      const { iconCom, type } = this;
-      return this.children.length === 1 && !iconCom && type !== 'link';
-    },
-  },
-  render() {
-    this.iconCom = getComponent(this, 'icon');
-    const { type, htmlType, iconCom, disabled, handleClick, sLoading, href, title, $attrs } = this;
-    const children = getSlot(this);
-    this.children = children;
-    const classes = this.getClasses();
-
-    const buttonProps = {
-      ...$attrs,
-      title,
-      disabled,
-      class: classes,
-      onClick: handleClick,
     };
-    const iconNode = sLoading ? <LoadingOutlined /> : iconCom;
 
-    const autoInsertSpace = this.configProvider.autoInsertSpaceInButton !== false;
-    const kids = children.map(child =>
-      this.insertSpace(child, this.isNeedInserted() && autoInsertSpace),
-    );
+    watchEffect(() => {
+      devWarning(
+        !(props.ghost && isUnborderedButtonType(props.type)),
+        'Button',
+        "`link` or `text` button can't be a `ghost` button.",
+      );
+    });
 
-    if (href !== undefined) {
-      return (
-        <a {...buttonProps} href={href} ref="buttonNode">
+    onMounted(fixTwoCNChar);
+    onUpdated(fixTwoCNChar);
+
+    onBeforeUnmount(() => {
+      delayTimeoutRef.value && clearTimeout(delayTimeoutRef.value);
+    });
+
+    return () => {
+      const children = flattenChildren(getPropsSlot(slots, props));
+
+      const icon = getPropsSlot(slots, props, 'icon');
+
+      isNeedInserted = children.length === 1 && !icon && !isUnborderedButtonType(props.type);
+
+      const { type, htmlType, disabled, href, title, target } = props;
+
+      const iconType = innerLoading.value ? 'loading' : icon;
+      const buttonProps = {
+        ...attrs,
+        title,
+        disabled,
+        class: [
+          classes.value,
+          attrs.class,
+          { [`${prefixCls.value}-icon-only`]: children.length === 0 && !!iconType },
+        ],
+        onClick: handleClick,
+      };
+
+      const iconNode = innerLoading.value ? (
+        <span class={`${prefixCls.value}-loading-icon`}>
+          <LoadingOutlined />
+        </span>
+      ) : (
+        icon
+      );
+
+      const kids = children.map(child =>
+        insertSpace(child, isNeedInserted && autoInsertSpace.value),
+      );
+
+      if (href !== undefined) {
+        return (
+          <a {...buttonProps} href={href} target={target} ref={buttonNodeRef}>
+            {iconNode}
+            {kids}
+          </a>
+        );
+      }
+
+      const buttonNode = (
+        <button {...buttonProps} ref={buttonNodeRef} type={htmlType}>
           {iconNode}
           {kids}
-        </a>
+        </button>
       );
-    }
 
-    const buttonNode = (
-      <button {...buttonProps} ref="buttonNode" type={htmlType || 'button'}>
-        {iconNode}
-        {kids}
-      </button>
-    );
+      if (isUnborderedButtonType(type)) {
+        return buttonNode;
+      }
 
-    if (type === 'link') {
-      return buttonNode;
-    }
-
-    return <Wave ref="wave">{buttonNode}</Wave>;
+      return <Wave ref="wave">{buttonNode}</Wave>;
+    };
   },
 });
diff --git a/components/button/buttonTypes.ts b/components/button/buttonTypes.ts
index 4764bccb6..87b1f498d 100644
--- a/components/button/buttonTypes.ts
+++ b/components/button/buttonTypes.ts
@@ -1,32 +1,48 @@
-import type { ExtractPropTypes } from 'vue';
-
 import { tuple } from '../_util/type';
-import PropTypes, { withUndefined } from '../_util/vue-types';
+import PropTypes from '../_util/vue-types';
 
-const ButtonTypes = tuple('default', 'primary', 'ghost', 'dashed', 'danger', 'link');
+import type { ExtractPropTypes, PropType } from 'vue';
+import type { SizeType } from '../config-provider';
+
+const ButtonTypes = tuple('default', 'primary', 'ghost', 'dashed', 'link', 'text');
 export type ButtonType = typeof ButtonTypes[number];
-const ButtonShapes = tuple('circle', 'circle-outline', 'round');
+const ButtonShapes = tuple('circle', 'round');
 export type ButtonShape = typeof ButtonShapes[number];
-const ButtonSizes = tuple('large', 'default', 'small');
-export type ButtonSize = typeof ButtonSizes[number];
+
 const ButtonHTMLTypes = tuple('submit', 'button', 'reset');
 export type ButtonHTMLType = typeof ButtonHTMLTypes[number];
 
+export type LegacyButtonType = ButtonType | 'danger';
+export function convertLegacyProps(type?: LegacyButtonType): ButtonProps {
+  if (type === 'danger') {
+    return { danger: true };
+  }
+  return { type };
+}
+
 const buttonProps = () => ({
   prefixCls: PropTypes.string,
   type: PropTypes.oneOf(ButtonTypes),
   htmlType: PropTypes.oneOf(ButtonHTMLTypes).def('button'),
-  // icon: PropTypes.string,
   shape: PropTypes.oneOf(ButtonShapes),
-  size: PropTypes.oneOf(ButtonSizes).def('default'),
-  loading: withUndefined(PropTypes.oneOfType([PropTypes.looseBool, PropTypes.object])),
+  size: {
+    type: String as PropType<SizeType>,
+  },
+  loading: {
+    type: [Boolean, Object],
+    default: (): boolean | { delay?: number } => false,
+  },
   disabled: PropTypes.looseBool,
   ghost: PropTypes.looseBool,
   block: PropTypes.looseBool,
+  danger: PropTypes.looseBool,
   icon: PropTypes.VNodeChild,
   href: PropTypes.string,
+  target: PropTypes.string,
   title: PropTypes.string,
-  onClick: PropTypes.func,
+  onClick: {
+    type: Function as PropType<(event: MouseEvent) => void>,
+  },
 });
 
 export type ButtonProps = Partial<ExtractPropTypes<ReturnType<typeof buttonProps>>>;
diff --git a/components/button/index.ts b/components/button/index.ts
index e1f55164e..cc7c408e2 100644
--- a/components/button/index.ts
+++ b/components/button/index.ts
@@ -1,7 +1,12 @@
 import type { App, Plugin } from 'vue';
 import Button from './button';
 import ButtonGroup from './button-group';
-export type { ButtonProps } from './button';
+
+import type { ButtonProps, ButtonShape, ButtonType } from './buttonTypes';
+import type { ButtonGroupProps } from './button-group';
+import type { SizeType as ButtonSize } from '../config-provider';
+
+export type { ButtonProps, ButtonShape, ButtonType, ButtonGroupProps, ButtonSize };
 
 Button.Group = ButtonGroup;
 
@@ -11,7 +16,9 @@ Button.install = function (app: App) {
   app.component(ButtonGroup.name, ButtonGroup);
   return app;
 };
+
 export { ButtonGroup };
+
 export default Button as typeof Button &
   Plugin & {
     readonly Group: typeof ButtonGroup;
diff --git a/components/button/style/index.less b/components/button/style/index.less
index 32fccf33b..2ea7e01a3 100644
--- a/components/button/style/index.less
+++ b/components/button/style/index.less
@@ -15,22 +15,18 @@
   // Fixing https://github.com/ant-design/ant-design/issues/12978
   // Fixing https://github.com/ant-design/ant-design/issues/20058
   // Fixing https://github.com/ant-design/ant-design/issues/19972
-  // Fixing https://github.com/ant-design/ant-design/issues/12978
   // Fixing https://github.com/ant-design/ant-design/issues/18107
   // Fixing https://github.com/ant-design/ant-design/issues/13214
   // It is a render problem of chrome, which is only happened in the codesandbox demo
   // 0.001px solution works and I don't why
-  line-height: @line-height-base;
+  line-height: @btn-line-height;
   .btn();
   .btn-default();
 
-  // Make sure that the target of Button's click event always be `button`
-  // Ref: https://github.com/ant-design/ant-design/issues/7034
-  > i,
+  // Fix loading button animation
+  // https://github.com/ant-design/ant-design/issues/24323
   > span {
     display: inline-block;
-    transition: margin-left 0.3s @ease-in-out;
-    pointer-events: none;
   }
 
   &-primary {
@@ -48,6 +44,7 @@
     .@{btn-prefix-cls}-group &:first-child {
       &:not(:last-child) {
         border-right-color: @btn-group-border;
+
         &[disabled] {
           border-right-color: @btn-default-border;
         }
@@ -57,6 +54,7 @@
     .@{btn-prefix-cls}-group &:last-child:not(:first-child),
     .@{btn-prefix-cls}-group & + & {
       border-left-color: @btn-group-border;
+
       &[disabled] {
         border-left-color: @btn-default-border;
       }
@@ -71,6 +69,8 @@
     .btn-dashed();
   }
 
+  // type="danger" will deprecated
+  // use danger instead
   &-danger {
     .btn-danger();
   }
@@ -79,12 +79,29 @@
     .btn-link();
   }
 
+  &-text {
+    .btn-text();
+  }
+
+  &-dangerous {
+    .btn-danger-default();
+  }
+
+  &-dangerous&-primary {
+    .btn-danger();
+  }
+
+  &-dangerous&-link {
+    .btn-danger-link();
+  }
+
+  &-dangerous&-text {
+    .btn-danger-text();
+  }
+
   &-icon-only {
     .btn-square(@btn-prefix-cls);
-
-    > i {
-      vertical-align: middle;
-    }
+    vertical-align: -1px;
   }
 
   &-round {
@@ -94,17 +111,16 @@
     }
   }
 
-  &-circle,
-  &-circle-outline {
+  &-circle {
     .btn-circle(@btn-prefix-cls);
   }
 
   &::before {
     position: absolute;
-    top: -1px;
-    right: -1px;
-    bottom: -1px;
-    left: -1px;
+    top: -@btn-border-width;
+    right: -@btn-border-width;
+    bottom: -@btn-border-width;
+    left: -@btn-border-width;
     z-index: 1;
     display: none;
     background: @component-background;
@@ -133,23 +149,28 @@
     &:not([disabled]) {
       pointer-events: none;
     }
-  }
 
-  &&-loading::before {
-    display: block;
-  }
-
-  &&-loading:not(&-circle):not(&-circle-outline):not(&-icon-only) {
-    padding-left: 29px;
-    .@{iconfont-css-prefix}:not(:last-child) {
-      margin-left: -14px;
+    &::before {
+      display: block;
     }
   }
 
-  &-sm&-loading:not(&-circle):not(&-circle-outline):not(&-icon-only) {
-    padding-left: 24px;
+  & > &-loading-icon {
+    transition: all 0.3s @ease-in-out;
+
     .@{iconfont-css-prefix} {
-      margin-left: -17px;
+      padding-right: @padding-xs;
+      animation: none;
+      // for smooth button padding transition
+      svg {
+        animation: loadingCircle 1s infinite linear;
+      }
+    }
+
+    &:only-child {
+      .@{iconfont-css-prefix} {
+        padding-right: 0;
+      }
     }
   }
 
@@ -166,7 +187,7 @@
   // To ensure that a space will be placed between character and `Icon`.
   > .@{iconfont-css-prefix} + span,
   > span + .@{iconfont-css-prefix} {
-    margin-left: 8px;
+    margin-left: @margin-xs;
   }
 
   &-background-ghost {
@@ -183,10 +204,12 @@
     .button-variant-ghost(@btn-danger-border);
   }
 
-  &-background-ghost&-link {
-    .button-variant-ghost(@link-color; transparent);
+  &-background-ghost&-dangerous {
+    .button-variant-ghost(@btn-danger-border);
+  }
 
-    color: @component-background;
+  &-background-ghost&-dangerous&-link {
+    .button-variant-ghost(@btn-danger-border, transparent);
   }
 
   &-two-chinese-chars::first-letter {
@@ -203,16 +226,21 @@
   }
 
   // https://github.com/ant-design/ant-design/issues/12681
+  // same method as Select
   &:empty {
-    vertical-align: top;
+    display: inline-block;
+    width: 0;
+    visibility: hidden;
+    content: '\a0';
   }
 }
 
 a.@{btn-prefix-cls} {
   // Fixing https://github.com/ant-design/ant-design/issues/12978
+  // https://github.com/ant-design/ant-design/issues/29978
   // It is a render problem of chrome, which is only happened in the codesandbox demo
   // 0.1px for padding-top solution works and I don't why
-  padding-top: 0.1px;
+  padding-top: 0.01px !important;
   line-height: @btn-height-base - 2px;
 
   &-lg {
@@ -222,3 +250,5 @@ a.@{btn-prefix-cls} {
     line-height: @btn-height-sm - 2px;
   }
 }
+
+@import './rtl';
diff --git a/components/button/style/mixin.less b/components/button/style/mixin.less
index 90531b968..b02434fd3 100644
--- a/components/button/style/mixin.less
+++ b/components/button/style/mixin.less
@@ -1,21 +1,22 @@
 // mixins for button
 // ------------------------
-.button-size(@height; @padding; @font-size; @border-radius) {
+.button-size(@height; @padding-horizontal; @font-size; @border-radius) {
+  @padding-vertical: max(
+    (round(((@height - @font-size * @line-height-base) / 2) * 10) / 10) - @border-width-base,
+    0
+  );
   height: @height;
-  padding: @padding;
+  padding: @padding-vertical @padding-horizontal;
   font-size: @font-size;
   border-radius: @border-radius;
 }
 
 .button-disabled(@color: @btn-disable-color; @background: @btn-disable-bg; @border: @btn-disable-border) {
-  &-disabled,
-  &.disabled,
   &[disabled] {
     &,
     &:hover,
     &:focus,
-    &:active,
-    &.active {
+    &:active {
       .button-color(@color; @background; @border);
 
       text-shadow: none;
@@ -44,8 +45,7 @@
     }
   }
 
-  &:active,
-  &.active {
+  &:active {
     & when (@theme = dark) {
       .button-color(
         @color; ~`colorPalette('@{background}', 5) `; ~`colorPalette('@{background}', 5) `
@@ -76,8 +76,7 @@
       );
     }
   }
-  &:active,
-  &.active {
+  &:active {
     & when (@theme = dark) {
       .button-color(@primary-7; @background; @primary-7);
     }
@@ -103,7 +102,7 @@
         .button-color(~`colorPalette('@{color}', 5) `; transparent; transparent);
       }
     }
-    & when not(@border = transparent) {
+    & when not (@border = transparent) {
       & when (@theme = dark) {
         .button-color(
           ~`colorPalette('@{color}', 7) `; transparent; ~`colorPalette('@{color}', 7) `
@@ -116,8 +115,7 @@
       }
     }
   }
-  &:active,
-  &.active {
+  &:active {
     & when (@border = transparent) {
       & when (@theme = dark) {
         .button-color(~`colorPalette('@{color}', 5) `; transparent; transparent);
@@ -143,9 +141,8 @@
 }
 .button-color(@color; @background; @border) {
   color: @color;
-  background-color: @background;
-  border-color: @border;
-  // a inside Button which only work in Chrome
+  background: @background;
+  border-color: @border; // a inside Button which only work in Chrome
   // http://stackoverflow.com/a/17253457
   > a:only-child {
     color: currentColor;
@@ -168,37 +165,34 @@
     position: relative;
     &:hover,
     &:focus,
-    &:active,
-    &.active {
+    &:active {
       z-index: 2;
     }
-    &:disabled {
+    &[disabled] {
       z-index: 0;
     }
   }
-  > .@{btnClassName}-icon-only {
+  .@{btnClassName}-icon-only {
     font-size: @font-size-base;
   }
   // size
   &-lg > .@{btnClassName},
   &-lg > span > .@{btnClassName} {
-    .button-size(@btn-height-lg; @btn-padding-lg; @btn-font-size-lg; 0);
-    line-height: @btn-height-lg - 2px;
+    .button-size(@btn-height-lg; @btn-padding-horizontal-lg; @btn-font-size-lg; 0);
   }
-  &-lg > .@{btnClassName}.@{btnClassName}-icon-only {
+  &-lg .@{btnClassName}.@{btnClassName}-icon-only {
     .square(@btn-height-lg);
     padding-right: 0;
     padding-left: 0;
   }
   &-sm > .@{btnClassName},
   &-sm > span > .@{btnClassName} {
-    .button-size(@btn-height-sm; @btn-padding-sm; @font-size-base; 0);
-    line-height: @btn-height-sm - 2px;
+    .button-size(@btn-height-sm; @btn-padding-horizontal-sm; @font-size-base; 0);
     > .@{iconfont-css-prefix} {
       font-size: @font-size-base;
     }
   }
-  &-sm > .@{btnClassName}.@{btnClassName}-icon-only {
+  &-sm .@{btnClassName}.@{btnClassName}-icon-only {
     .square(@btn-height-sm);
     padding-right: 0;
     padding-left: 0;
@@ -219,7 +213,9 @@
   transition: all 0.3s @ease-in-out;
   user-select: none;
   touch-action: manipulation;
-  .button-size(@btn-height-base; @btn-padding-base; @font-size-base; @btn-border-radius-base);
+  .button-size(
+    @btn-height-base; @btn-padding-horizontal-base; @font-size-base; @btn-border-radius-base
+  );
   > .@{iconfont-css-prefix} {
     line-height: 1;
   }
@@ -235,7 +231,6 @@
     outline: 0;
     box-shadow: none;
   }
-  &.disabled,
   &[disabled] {
     cursor: not-allowed;
     > * {
@@ -243,10 +238,14 @@
     }
   }
   &-lg {
-    .button-size(@btn-height-lg; @btn-padding-lg; @btn-font-size-lg; @btn-border-radius-base);
+    .button-size(
+      @btn-height-lg; @btn-padding-horizontal-lg; @btn-font-size-lg; @btn-border-radius-base
+    );
   }
   &-sm {
-    .button-size(@btn-height-sm; @btn-padding-sm; @btn-font-size-sm; @btn-border-radius-sm);
+    .button-size(
+      @btn-height-sm; @btn-padding-horizontal-sm; @btn-font-size-sm; @btn-border-radius-sm
+    );
   }
 }
 // primary button style
@@ -258,8 +257,7 @@
   .button-variant-other(@btn-default-color; @btn-default-bg; @btn-default-border);
   &:hover,
   &:focus,
-  &:active,
-  &.active {
+  &:active {
     text-decoration: none;
     background: @btn-default-bg;
   }
@@ -277,10 +275,70 @@
 .btn-danger() {
   .button-variant-primary(@btn-danger-color, @btn-danger-bg);
 }
+// danger default button style
+.btn-danger-default() {
+  .button-color(@error-color, @btn-default-bg, @error-color);
+  &:hover,
+  &:focus {
+    & when (@theme = dark) {
+      .button-color(
+        ~`colorPalette('@{error-color}', 7) `; @btn-default-bg; ~`colorPalette('@{error-color}', 7)
+          `
+      );
+    }
+    & when not (@theme = dark) {
+      .button-color(
+        ~`colorPalette('@{error-color}', 5) `; @btn-default-bg; ~`colorPalette('@{error-color}', 5)
+          `
+      );
+    }
+  }
+  &:active {
+    & when (@theme = dark) {
+      .button-color(
+        ~`colorPalette('@{error-color}', 5) `; @btn-default-bg; ~`colorPalette('@{error-color}', 5)
+          `
+      );
+    }
+    & when not (@theme = dark) {
+      .button-color(
+        ~`colorPalette('@{error-color}', 7) `; @btn-default-bg; ~`colorPalette('@{error-color}', 7)
+          `
+      );
+    }
+  }
+  .button-disabled();
+}
+// danger link button style
+.btn-danger-link() {
+  .button-variant-other(@error-color, transparent, transparent);
+  box-shadow: none;
+  &:hover,
+  &:focus {
+    & when (@theme = dark) {
+      .button-color(~`colorPalette('@{error-color}', 7) `; transparent; transparent);
+    }
+    & when not (@theme = dark) {
+      .button-color(~`colorPalette('@{error-color}', 5) `; transparent; transparent);
+    }
+  }
+  &:active {
+    & when (@theme = dark) {
+      .button-color(~`colorPalette('@{error-color}', 5) `; transparent; transparent);
+    }
+    & when not (@theme = dark) {
+      .button-color(~`colorPalette('@{error-color}', 7) `; transparent; transparent);
+    }
+  }
+  .button-disabled(@disabled-color; transparent; transparent);
+}
 // link button style
 .btn-link() {
   .button-variant-other(@link-color, transparent, transparent);
   box-shadow: none;
+  &:hover {
+    background: @btn-link-hover-bg;
+  }
   &:hover,
   &:focus,
   &:active {
@@ -288,31 +346,82 @@
   }
   .button-disabled(@disabled-color; transparent; transparent);
 }
+// text button style
+.btn-text() {
+  .button-variant-other(@text-color, transparent, transparent);
+  box-shadow: none;
+  &:hover,
+  &:focus {
+    color: @text-color;
+    background: @btn-text-hover-bg;
+    border-color: transparent;
+  }
+
+  &:active {
+    color: @text-color;
+    background: fadein(@btn-text-hover-bg, 1%);
+    border-color: transparent;
+  }
+
+  .button-disabled(@disabled-color; transparent; transparent);
+}
+.btn-danger-text() {
+  .button-variant-other(@error-color, transparent, transparent);
+  box-shadow: none;
+  &:hover,
+  &:focus {
+    & when (@theme = dark) {
+      .button-color(~`colorPalette('@{error-color}', 7) `; @btn-text-hover-bg; transparent);
+    }
+    & when not (@theme = dark) {
+      .button-color(~`colorPalette('@{error-color}', 5) `; @btn-text-hover-bg; transparent);
+    }
+  }
+
+  &:active {
+    & when (@theme = dark) {
+      .button-color(~`colorPalette('@{error-color}', 5) `; fadein(@btn-text-hover-bg, 1%); transparent);
+    }
+    & when not (@theme = dark) {
+      .button-color(~`colorPalette('@{error-color}', 7) `; fadein(@btn-text-hover-bg, 1%); transparent);
+    }
+  }
+  .button-disabled(@disabled-color; transparent; transparent);
+}
 // round button
 .btn-round(@btnClassName: btn) {
-  .button-size(@btn-circle-size; 0 (@btn-circle-size / 2) ; @font-size-base; @btn-circle-size);
+  .button-size(@btn-circle-size; (@btn-circle-size / 2); @font-size-base; @btn-circle-size);
   &.@{btnClassName}-lg {
     .button-size(
-      @btn-circle-size-lg; 0 (@btn-circle-size-lg / 2) ; @btn-font-size-lg; @btn-circle-size-lg
+      @btn-circle-size-lg; (@btn-circle-size-lg / 2); @btn-font-size-lg; @btn-circle-size-lg
     );
   }
   &.@{btnClassName}-sm {
     .button-size(
-      @btn-circle-size-sm; 0 (@btn-circle-size-sm / 2) ; @font-size-base; @btn-circle-size-sm
+      @btn-circle-size-sm; (@btn-circle-size-sm / 2); @font-size-base; @btn-circle-size-sm
     );
   }
 }
 // square button: the content only contains icon
 .btn-square(@btnClassName: btn) {
   .square(@btn-square-size);
-  .button-size(@btn-square-size; 0; @font-size-base + 2px; @btn-border-radius-base);
+  .button-size(@btn-square-size; 0; @btn-square-only-icon-size; @btn-border-radius-base);
+  & > * {
+    font-size: @btn-square-only-icon-size;
+  }
   &.@{btnClassName}-lg {
     .square(@btn-square-size-lg);
-    .button-size(@btn-square-size-lg; 0; @btn-font-size-lg + 2px; @btn-border-radius-base);
+    .button-size(@btn-square-size-lg; 0; @btn-square-only-icon-size-lg; @btn-border-radius-base);
+    & > * {
+      font-size: @btn-square-only-icon-size-lg;
+    }
   }
   &.@{btnClassName}-sm {
     .square(@btn-square-size-sm);
-    .button-size(@btn-square-size-sm; 0; @font-size-base; @btn-border-radius-base);
+    .button-size(@btn-square-size-sm; 0; @btn-square-only-icon-size-sm; @btn-border-radius-base);
+    & > * {
+      font-size: @btn-square-only-icon-size-sm;
+    }
   }
 }
 // circle button: the content only contains icon
diff --git a/components/button/style/rtl.less b/components/button/style/rtl.less
new file mode 100644
index 000000000..6cf8b6f96
--- /dev/null
+++ b/components/button/style/rtl.less
@@ -0,0 +1,108 @@
+.@{btn-prefix-cls} {
+  &-rtl {
+    direction: rtl;
+  }
+
+  &-primary {
+    .@{btn-prefix-cls}-group &:last-child:not(:first-child),
+    .@{btn-prefix-cls}-group & + & {
+      .@{btn-prefix-cls}-group-rtl& {
+        border-right-color: @btn-group-border;
+        border-left-color: @btn-default-border;
+      }
+      &[disabled] {
+        .@{btn-prefix-cls}-group-rtl& {
+          border-right-color: @btn-default-border;
+          border-left-color: @btn-group-border;
+        }
+      }
+    }
+  }
+
+  & > &-loading-icon {
+    .@{iconfont-css-prefix} {
+      .@{btn-prefix-cls}-rtl& {
+        padding-right: 0;
+        padding-left: @margin-xs;
+      }
+    }
+
+    &:only-child {
+      .@{iconfont-css-prefix} {
+        padding-right: 0;
+        padding-left: 0;
+      }
+    }
+  }
+
+  > .@{iconfont-css-prefix} + span,
+  > span + .@{iconfont-css-prefix} {
+    .@{btn-prefix-cls}-rtl& {
+      margin-right: 8px;
+      margin-left: 0;
+    }
+  }
+}
+
+// mixin
+.btn-group(@btnClassName: btn) {
+  .@{btnClassName} + .@{btnClassName},
+  .@{btnClassName} + &,
+  span + .@{btnClassName},
+  .@{btnClassName} + span,
+  > span + span,
+  & + .@{btnClassName},
+  & + & {
+    .@{btnClassName}-rtl&,
+    .@{btnClassName}-group-rtl& {
+      margin-right: -1px;
+      margin-left: auto;
+    }
+  }
+
+  &.@{btnClassName}-group-rtl {
+    direction: rtl;
+  }
+
+  > .@{btnClassName}:first-child:not(:last-child),
+  > span:first-child:not(:last-child) > .@{btnClassName} {
+    .@{btnClassName}-group-rtl& {
+      border-top-left-radius: 0;
+      border-top-right-radius: @btn-border-radius-base;
+      border-bottom-right-radius: @btn-border-radius-base;
+      border-bottom-left-radius: 0;
+    }
+  }
+
+  > .@{btnClassName}:last-child:not(:first-child),
+  > span:last-child:not(:first-child) > .@{btnClassName} {
+    .@{btnClassName}-group-rtl& {
+      border-top-left-radius: @btn-border-radius-base;
+      border-top-right-radius: 0;
+      border-bottom-right-radius: 0;
+      border-bottom-left-radius: @btn-border-radius-base;
+    }
+  }
+
+  &-sm {
+    > .@{btnClassName}:first-child:not(:last-child),
+    > span:first-child:not(:last-child) > .@{btnClassName} {
+      .@{btnClassName}-group-rtl& {
+        border-top-left-radius: 0;
+        border-top-right-radius: @btn-border-radius-sm;
+        border-bottom-right-radius: @btn-border-radius-sm;
+        border-bottom-left-radius: 0;
+      }
+    }
+
+    > .@{btnClassName}:last-child:not(:first-child),
+    > span:last-child:not(:first-child) > .@{btnClassName} {
+      .@{btnClassName}-group-rtl& {
+        border-top-left-radius: @btn-border-radius-sm;
+        border-top-right-radius: 0;
+        border-bottom-right-radius: 0;
+        border-bottom-left-radius: @btn-border-radius-sm;
+      }
+    }
+  }
+}
diff --git a/components/date-picker/style/Calendar.less b/components/date-picker/style/Calendar.less
index fc287a89f..5dbac6f8c 100644
--- a/components/date-picker/style/Calendar.less
+++ b/components/date-picker/style/Calendar.less
@@ -396,7 +396,7 @@
   .@{calendar-prefix-cls}-ok-btn {
     .btn();
     .btn-primary();
-    .button-size(@btn-height-sm; @btn-padding-sm; @font-size-base; @border-radius-base);
+    .button-size(@btn-height-sm; @btn-padding-horizontal-sm; @font-size-base; @border-radius-base);
 
     line-height: @btn-height-sm - 2px;
 
diff --git a/components/modal/ActionButton.tsx b/components/modal/ActionButton.tsx
index ee3d3714e..25e0e000e 100644
--- a/components/modal/ActionButton.tsx
+++ b/components/modal/ActionButton.tsx
@@ -1,14 +1,15 @@
-import type { ExtractPropTypes } from 'vue';
+import type { ExtractPropTypes, PropType } from 'vue';
 import { defineComponent } from 'vue';
 import PropTypes from '../_util/vue-types';
 import Button from '../button';
 import BaseMixin from '../_util/BaseMixin';
-import buttonTypes from '../button/buttonTypes';
+import { convertLegacyProps, LegacyButtonType } from '../button/buttonTypes';
 import { getSlot, findDOMNode } from '../_util/props-util';
-const ButtonType = buttonTypes().type;
 
 const ActionButtonProps = {
-  type: ButtonType,
+  type: {
+    type: String as PropType<LegacyButtonType>,
+  },
   actionFn: PropTypes.func,
   closeModal: PropTypes.func,
   autofocus: PropTypes.looseBool,
@@ -77,7 +78,7 @@ export default defineComponent({
   render() {
     const { type, loading, buttonProps } = this;
     const props = {
-      type,
+      ...convertLegacyProps(type),
       onClick: this.onClick,
       loading,
       ...buttonProps,
diff --git a/components/modal/Modal.tsx b/components/modal/Modal.tsx
index 27e5d5579..9ed3a4df2 100644
--- a/components/modal/Modal.tsx
+++ b/components/modal/Modal.tsx
@@ -7,8 +7,11 @@ import addEventListener from '../vc-util/Dom/addEventListener';
 import { getConfirmLocale } from './locale';
 import CloseOutlined from '@ant-design/icons-vue/CloseOutlined';
 import Button from '../button';
-import type { ButtonProps as ButtonPropsType, ButtonType } from '../button/buttonTypes';
-import buttonTypes from '../button/buttonTypes';
+import buttonTypes, {
+  ButtonProps as ButtonPropsType,
+  convertLegacyProps,
+  LegacyButtonType,
+} from '../button/buttonTypes';
 import LocaleReceiver from '../locale-provider/LocaleReceiver';
 import { getComponent, getSlot } from '../_util/props-util';
 import initDefaultProps from '../_util/props-util/initDefaultProps';
@@ -63,7 +66,9 @@ const modalProps = {
   /** 确认按钮文字*/
   okText: PropTypes.any,
   /** 确认按钮类型*/
-  okType: buttonTypes().type,
+  okType: {
+    type: String as PropType<LegacyButtonType>,
+  },
   /** 取消按钮文字*/
   cancelText: PropTypes.any,
   icon: PropTypes.any,
@@ -104,7 +109,7 @@ export interface ModalFuncProps {
   centered?: boolean;
   width?: string | number;
   okText?: VNodeTypes;
-  okType?: ButtonType;
+  okType?: LegacyButtonType;
   cancelText?: VNodeTypes;
   icon?: VNodeTypes;
   /* Deprecated */
@@ -180,7 +185,7 @@ export default defineComponent({
       const cancelBtnProps = { onClick: this.handleCancel, ...(this.cancelButtonProps || {}) };
       const okBtnProps = {
         onClick: this.handleOk,
-        type: okType,
+        ...convertLegacyProps(okType),
         loading: confirmLoading,
         ...(this.okButtonProps || {}),
       };
diff --git a/components/popconfirm/index.tsx b/components/popconfirm/index.tsx
index 35ea3951c..f4d739f3c 100644
--- a/components/popconfirm/index.tsx
+++ b/components/popconfirm/index.tsx
@@ -1,11 +1,11 @@
 import omit from 'omit.js';
-import { defineComponent, inject } from 'vue';
+import { defineComponent, inject, PropType } from 'vue';
 import Tooltip from '../tooltip';
 import abstractTooltipProps from '../tooltip/abstractTooltipProps';
 import PropTypes from '../_util/vue-types';
 import { getOptionProps, hasProp, getComponent, mergeProps } from '../_util/props-util';
 import BaseMixin from '../_util/BaseMixin';
-import buttonTypes from '../button/buttonTypes';
+import { LegacyButtonType, convertLegacyProps } from '../button/buttonTypes';
 import ExclamationCircleFilled from '@ant-design/icons-vue/ExclamationCircleFilled';
 import Button from '../button';
 import LocaleReceiver from '../locale-provider/LocaleReceiver';
@@ -14,7 +14,6 @@ import { defaultConfigProvider } from '../config-provider';
 import { withInstall } from '../_util/type';
 
 const tooltipProps = abstractTooltipProps();
-const btnProps = buttonTypes();
 
 const Popconfirm = defineComponent({
   name: 'APopconfirm',
@@ -26,7 +25,10 @@ const Popconfirm = defineComponent({
     content: PropTypes.any,
     title: PropTypes.any,
     trigger: tooltipProps.trigger.def('click'),
-    okType: btnProps.type.def('primary'),
+    okType: {
+      type: String as PropType<LegacyButtonType>,
+      default: 'primary',
+    },
     disabled: PropTypes.looseBool.def(false),
     okText: PropTypes.any,
     cancelText: PropTypes.any,
@@ -97,7 +99,7 @@ const Popconfirm = defineComponent({
         ...cancelButtonProps,
       });
       const okBtnProps = mergeProps({
-        type: okType,
+        ...convertLegacyProps(okType),
         size: 'small',
         onClick: this.onConfirmHandle,
         ...okButtonProps,
diff --git a/components/style/themes/default.less b/components/style/themes/default.less
index 3bc40f36e..1b9b0c301 100644
--- a/components/style/themes/default.less
+++ b/components/style/themes/default.less
@@ -189,16 +189,18 @@
 @btn-default-ghost-bg: transparent;
 @btn-default-ghost-border: @component-background;
 
-@btn-padding-base: 0 @padding-md - 1px;
 @btn-font-size-lg: @font-size-lg;
 @btn-font-size-sm: @font-size-base;
-@btn-padding-lg: @btn-padding-base;
-@btn-padding-sm: 0 @padding-xs - 1px;
+@btn-padding-horizontal-base: @padding-md - 1px;
+@btn-padding-horizontal-lg: @btn-padding-horizontal-base;
+@btn-padding-horizontal-sm: @padding-xs - 1px;
 
 @btn-height-base: 32px;
 @btn-height-lg: 40px;
 @btn-height-sm: 24px;
 
+@btn-line-height: @line-height-base;
+
 @btn-circle-size: @btn-height-base;
 @btn-circle-size-lg: @btn-height-lg;
 @btn-circle-size-sm: @btn-height-sm;
@@ -206,9 +208,13 @@
 @btn-square-size: @btn-height-base;
 @btn-square-size-lg: @btn-height-lg;
 @btn-square-size-sm: @btn-height-sm;
+@btn-square-only-icon-size: @font-size-base + 2px;
+@btn-square-only-icon-size-sm: @font-size-base;
+@btn-square-only-icon-size-lg: @btn-font-size-lg + 2px;
 
 @btn-group-border: @primary-5;
 
+@btn-link-hover-bg: transparent;
 @btn-text-hover-bg: rgba(0, 0, 0, 0.018);
 
 // Checkbox
diff --git a/v2-doc b/v2-doc
index f8c276329..b6ab0fec2 160000
--- a/v2-doc
+++ b/v2-doc
@@ -1 +1 @@
-Subproject commit f8c276329a6bfa295847dc4a11538863f9f4cced
+Subproject commit b6ab0fec2cfa378bab8dfe6c8ef6b6a8664b970e