diff --git a/components/menu/index.tsx b/components/menu/index.tsx
index fa839d6b1..d61ffcdd6 100644
--- a/components/menu/index.tsx
+++ b/components/menu/index.tsx
@@ -1,7 +1,7 @@
-import Menu from './src/Menu';
-import MenuItem from './src/MenuItem';
-import SubMenu from './src/SubMenu';
-import ItemGroup from './src/ItemGroup';
+import Menu, { MenuProps } from './src/Menu';
+import MenuItem, { MenuItemProps } from './src/MenuItem';
+import SubMenu, { SubMenuProps } from './src/SubMenu';
+import ItemGroup, { MenuItemGroupProps } from './src/ItemGroup';
 import Divider from './src/Divider';
 import { App } from 'vue';
 /* istanbul ignore next */
@@ -19,6 +19,18 @@ Menu.Divider = Divider;
 Menu.SubMenu = SubMenu;
 Menu.ItemGroup = ItemGroup;
 
+export {
+  SubMenu,
+  MenuItem as Item,
+  MenuItem,
+  ItemGroup,
+  Divider,
+  MenuProps,
+  SubMenuProps,
+  MenuItemProps,
+  MenuItemGroupProps,
+};
+
 export default Menu as typeof Menu &
   Plugin & {
     readonly Item: typeof MenuItem;
diff --git a/components/menu/src/ItemGroup.tsx b/components/menu/src/ItemGroup.tsx
index 993f0cb4d..953594f20 100644
--- a/components/menu/src/ItemGroup.tsx
+++ b/components/menu/src/ItemGroup.tsx
@@ -1,13 +1,17 @@
 import { getPropsSlot } from '../../_util/props-util';
-import { computed, defineComponent } from 'vue';
+import { computed, defineComponent, ExtractPropTypes } from 'vue';
 import PropTypes from '../../_util/vue-types';
 import { useInjectMenu } from './hooks/useMenuContext';
 
+const menuItemGroupProps = {
+  title: PropTypes.VNodeChild,
+};
+
+export type MenuItemGroupProps = Partial<ExtractPropTypes<typeof menuItemGroupProps>>;
+
 export default defineComponent({
   name: 'AMenuItemGroup',
-  props: {
-    title: PropTypes.VNodeChild,
-  },
+  props: menuItemGroupProps,
   inheritAttrs: false,
   slots: ['title'],
   setup(props, { slots, attrs }) {
diff --git a/components/menu/src/Menu.tsx b/components/menu/src/Menu.tsx
index 4f619ad38..36f2e2556 100644
--- a/components/menu/src/Menu.tsx
+++ b/components/menu/src/Menu.tsx
@@ -10,8 +10,8 @@ import {
   watch,
   reactive,
   onMounted,
-  toRaw,
   unref,
+  UnwrapRef,
 } from 'vue';
 import shallowEqual from '../../_util/shallowequal';
 import useProvideMenu, { StoreMenuInfo, useProvideFirstLevel } from './hooks/useMenuContext';
@@ -35,6 +35,7 @@ export const menuProps = {
   overflowDisabled: Boolean,
   openKeys: Array,
   selectedKeys: Array,
+  activeKey: String, // 内部组件使用
   selectable: { type: Boolean, default: true },
   multiple: { type: Boolean, default: false },
 
@@ -59,7 +60,15 @@ export type MenuProps = Partial<ExtractPropTypes<typeof menuProps>>;
 export default defineComponent({
   name: 'AMenu',
   props: menuProps,
-  emits: ['update:openKeys', 'openChange', 'select', 'deselect', 'update:selectedKeys', 'click'],
+  emits: [
+    'update:openKeys',
+    'openChange',
+    'select',
+    'deselect',
+    'update:selectedKeys',
+    'click',
+    'update:activeKey',
+  ],
   setup(props, { slots, emit }) {
     const { prefixCls, direction } = useConfigInject('menu', props);
     const store = reactive<Record<string, StoreMenuInfo>>({});
@@ -94,6 +103,34 @@ export default defineComponent({
 
     const activeKeys = ref([]);
     const mergedSelectedKeys = ref([]);
+    const keyMapStore = ref({});
+    watch(
+      store,
+      () => {
+        const newKeyMapStore = {};
+        for (let [_eventKey, menuInfo] of Object.entries(store)) {
+          newKeyMapStore[menuInfo.key] = menuInfo;
+        }
+        keyMapStore.value = newKeyMapStore;
+      },
+      { immediate: true },
+    );
+    watchEffect(() => {
+      if ('activeKey' in props) {
+        let keys = [];
+        const menuInfo = props.activeKey
+          ? (keyMapStore.value[props.activeKey] as UnwrapRef<StoreMenuInfo>)
+          : undefined;
+        if (menuInfo && props.activeKey !== undefined) {
+          keys = [...menuInfo.parentKeys, props.activeKey];
+        } else {
+          keys = [];
+        }
+        if (!shallowEqual(activeKeys.value, keys)) {
+          activeKeys.value = keys;
+        }
+      }
+    });
 
     watch(
       () => props.selectedKeys,
@@ -106,11 +143,12 @@ export default defineComponent({
     const selectedSubMenuEventKeys = ref([]);
 
     watch(
-      [store, mergedSelectedKeys],
+      [keyMapStore, mergedSelectedKeys],
       () => {
         let subMenuParentEventKeys = [];
-        (Object.values(toRaw(store)) as any).forEach((menuInfo: StoreMenuInfo) => {
-          if (mergedSelectedKeys.value.includes(menuInfo.key)) {
+        mergedSelectedKeys.value.forEach(key => {
+          const menuInfo = keyMapStore.value[key];
+          if (menuInfo) {
             subMenuParentEventKeys.push(...unref(menuInfo.parentEventKeys));
           }
         });
@@ -172,7 +210,11 @@ export default defineComponent({
     );
 
     const changeActiveKeys = (keys: Key[]) => {
-      activeKeys.value = keys;
+      if ('activeKey' in props) {
+        emit('update:activeKey', keys[keys.length - 1]);
+      } else {
+        activeKeys.value = keys;
+      }
     };
     const disabled = computed(() => !!props.disabled);
     const isRtl = computed(() => direction.value === 'rtl');
diff --git a/components/menu/src/MenuItem.tsx b/components/menu/src/MenuItem.tsx
index fb0368eea..21bffc608 100644
--- a/components/menu/src/MenuItem.tsx
+++ b/components/menu/src/MenuItem.tsx
@@ -1,24 +1,36 @@
 import { flattenChildren, getPropsSlot, isValidElement } from '../../_util/props-util';
 import PropTypes from '../../_util/vue-types';
-import { computed, defineComponent, getCurrentInstance, onBeforeUnmount, ref, watch } from 'vue';
+import {
+  computed,
+  defineComponent,
+  ExtractPropTypes,
+  getCurrentInstance,
+  onBeforeUnmount,
+  ref,
+  watch,
+} from 'vue';
 import { useInjectKeyPath } from './hooks/useKeyPath';
 import { useInjectFirstLevel, useInjectMenu } from './hooks/useMenuContext';
 import { cloneElement } from '../../_util/vnode';
 import Tooltip from '../../tooltip';
 import { MenuInfo } from './interface';
 import KeyCode from 'ant-design-vue/es/_util/KeyCode';
+import useDirectionStyle from './hooks/useDirectionStyle';
 
 let indexGuid = 0;
+const menuItemProps = {
+  role: String,
+  disabled: Boolean,
+  danger: Boolean,
+  title: { type: [String, Boolean], default: undefined },
+  icon: PropTypes.VNodeChild,
+};
+
+export type MenuItemProps = Partial<ExtractPropTypes<typeof menuItemProps>>;
 
 export default defineComponent({
   name: 'AMenuItem',
-  props: {
-    role: String,
-    disabled: Boolean,
-    danger: Boolean,
-    title: { type: [String, Boolean], default: undefined },
-    icon: PropTypes.VNodeChild,
-  },
+  props: menuItemProps,
   emits: ['mouseenter', 'mouseleave', 'click', 'keydown', 'focus'],
   slots: ['icon'],
   inheritAttrs: false,
@@ -26,7 +38,7 @@ export default defineComponent({
     const instance = getCurrentInstance();
     const key = instance.vnode.key;
     const eventKey = `menu_item_${++indexGuid}_$$_${key}`;
-    const { parentEventKeys } = useInjectKeyPath();
+    const { parentEventKeys, parentKeys } = useInjectKeyPath();
     const {
       prefixCls,
       activeKeys,
@@ -37,21 +49,21 @@ export default defineComponent({
       siderCollapsed,
       onItemClick,
       selectedKeys,
-      store,
       registerMenuInfo,
       unRegisterMenuInfo,
     } = useInjectMenu();
     const firstLevel = useInjectFirstLevel();
     const isActive = ref(false);
-    const keyPath = computed(() => {
-      return [...parentEventKeys.value.map(eK => store[eK].key), key];
+    const keysPath = computed(() => {
+      return [...parentKeys.value, key];
     });
 
-    const keysPath = computed(() => [...parentEventKeys.value, eventKey]);
+    // const keysPath = computed(() => [...parentEventKeys.value, eventKey]);
     const menuInfo = {
       eventKey,
       key,
       parentEventKeys,
+      parentKeys,
       isLeaf: true,
     };
 
@@ -85,7 +97,7 @@ export default defineComponent({
       return {
         key: key,
         eventKey: eventKey,
-        keyPath: keyPath.value,
+        keyPath: keysPath.value,
         eventKeyPath: [...parentEventKeys.value, eventKey],
         domEvent: e,
       };
@@ -150,6 +162,9 @@ export default defineComponent({
       return <span class={`${prefixCls.value}-title-content`}>{children}</span>;
     };
 
+    // ========================== DirectionStyle ==========================
+    const directionStyle = useDirectionStyle(computed(() => keysPath.value.length));
+
     return () => {
       const { title } = props;
       const children = flattenChildren(slots.default?.());
@@ -187,6 +202,7 @@ export default defineComponent({
         >
           <li
             {...attrs}
+            style={{ ...((attrs.style as any) || {}), ...directionStyle.value }}
             class={[
               classNames.value,
               {
diff --git a/components/menu/src/SubMenu.tsx b/components/menu/src/SubMenu.tsx
index 4f3a03bcb..fda61b062 100644
--- a/components/menu/src/SubMenu.tsx
+++ b/components/menu/src/SubMenu.tsx
@@ -7,6 +7,7 @@ import {
   watch,
   PropType,
   onBeforeUnmount,
+  ExtractPropTypes,
 } from 'vue';
 import useProvideKeyPath, { useInjectKeyPath } from './hooks/useKeyPath';
 import { useInjectMenu, useProvideFirstLevel, MenuContextProvider } from './hooks/useMenuContext';
@@ -19,17 +20,22 @@ import InlineSubMenuList from './InlineSubMenuList';
 import Transition, { getTransitionProps } from '../../_util/transition';
 
 let indexGuid = 0;
+
+const subMenuProps = {
+  icon: PropTypes.VNodeChild,
+  title: PropTypes.VNodeChild,
+  disabled: Boolean,
+  level: Number,
+  popupClassName: String,
+  popupOffset: Array as PropType<number[]>,
+  internalPopupClose: Boolean,
+};
+
+export type SubMenuProps = Partial<ExtractPropTypes<typeof subMenuProps>>;
+
 export default defineComponent({
   name: 'ASubMenu',
-  props: {
-    icon: PropTypes.VNodeChild,
-    title: PropTypes.VNodeChild,
-    disabled: Boolean,
-    level: Number,
-    popupClassName: String,
-    popupOffset: Array as PropType<number[]>,
-    internalPopupClose: Boolean,
-  },
+  props: subMenuProps,
   slots: ['icon', 'title'],
   emits: ['titleClick', 'mouseenter', 'mouseleave'],
   inheritAttrs: false,
@@ -40,15 +46,16 @@ export default defineComponent({
     const key = instance.vnode.key;
 
     const eventKey = `sub_menu_${++indexGuid}_$$_${key}`;
-    const { parentEventKeys, parentInfo } = useInjectKeyPath();
-    const keysPath = computed(() => [...parentEventKeys.value, eventKey]);
-
+    const { parentEventKeys, parentInfo, parentKeys } = useInjectKeyPath();
+    const keysPath = computed(() => [...parentKeys.value, key]);
+    const eventKeysPath = computed(() => [...parentEventKeys.value, eventKey]);
     const childrenEventKeys = ref([]);
     const menuInfo = {
       eventKey,
       key,
       parentEventKeys,
       childrenEventKeys,
+      parentKeys,
     };
     parentInfo.childrenEventKeys?.value.push(eventKey);
     onBeforeUnmount(() => {
@@ -59,7 +66,7 @@ export default defineComponent({
       }
     });
 
-    useProvideKeyPath(eventKey, menuInfo);
+    useProvideKeyPath(eventKey, key, menuInfo);
 
     const {
       prefixCls,
@@ -141,7 +148,7 @@ export default defineComponent({
     };
 
     // ========================== DirectionStyle ==========================
-    const directionStyle = useDirectionStyle(computed(() => keysPath.value.length));
+    const directionStyle = useDirectionStyle(computed(() => eventKeysPath.value.length));
 
     // >>>>> Visible change
     const onPopupVisibleChange = (newVisible: boolean) => {
@@ -189,7 +196,7 @@ export default defineComponent({
 
     // Cache mode if it change to `inline` which do not have popup motion
     const triggerModeRef = computed(() => {
-      return mode.value !== 'inline' && keysPath.value.length > 1 ? 'vertical' : mode.value;
+      return mode.value !== 'inline' && eventKeysPath.value.length > 1 ? 'vertical' : mode.value;
     });
 
     const renderMode = computed(() => (mode.value === 'horizontal' ? 'vertical' : mode.value));
diff --git a/components/menu/src/hooks/useDirectionStyle.ts b/components/menu/src/hooks/useDirectionStyle.ts
index 9721fc16d..358cb13d9 100644
--- a/components/menu/src/hooks/useDirectionStyle.ts
+++ b/components/menu/src/hooks/useDirectionStyle.ts
@@ -8,7 +8,7 @@ export default function useDirectionStyle(level: ComputedRef<number>): ComputedR
     mode.value !== 'inline'
       ? null
       : rtl.value
-      ? { paddingRight: level.value * inlineIndent.value }
-      : { paddingLeft: level.value * inlineIndent.value },
+      ? { paddingRight: `${level.value * inlineIndent.value}px` }
+      : { paddingLeft: `${level.value * inlineIndent.value}px` },
   );
 }
diff --git a/components/menu/src/hooks/useKeyPath.ts b/components/menu/src/hooks/useKeyPath.ts
index 35f30a1ec..45f6230c9 100644
--- a/components/menu/src/hooks/useKeyPath.ts
+++ b/components/menu/src/hooks/useKeyPath.ts
@@ -3,21 +3,24 @@ import { computed, ComputedRef, inject, InjectionKey, provide } from 'vue';
 import { StoreMenuInfo } from './useMenuContext';
 
 const KeyPathContext: InjectionKey<{
-  parentEventKeys: ComputedRef<Key[]>;
+  parentEventKeys: ComputedRef<string[]>;
+  parentKeys: ComputedRef<Key[]>;
   parentInfo: StoreMenuInfo;
 }> = Symbol('KeyPathContext');
 
 const useInjectKeyPath = () => {
   return inject(KeyPathContext, {
     parentEventKeys: computed(() => []),
+    parentKeys: computed(() => []),
     parentInfo: {} as StoreMenuInfo,
   });
 };
 
-const useProvideKeyPath = (eventKey: string, menuInfo: StoreMenuInfo) => {
-  const { parentEventKeys } = useInjectKeyPath();
-  const keys = computed(() => [...parentEventKeys.value, eventKey]);
-  provide(KeyPathContext, { parentEventKeys: keys, parentInfo: menuInfo });
+const useProvideKeyPath = (eventKey: string, key: Key, menuInfo: StoreMenuInfo) => {
+  const { parentEventKeys, parentKeys } = useInjectKeyPath();
+  const eventKeys = computed(() => [...parentEventKeys.value, eventKey]);
+  const keys = computed(() => [...parentKeys.value, key]);
+  provide(KeyPathContext, { parentEventKeys: eventKeys, parentKeys: keys, parentInfo: menuInfo });
   return keys;
 };
 
diff --git a/components/menu/src/hooks/useMenuContext.ts b/components/menu/src/hooks/useMenuContext.ts
index 7ee25502c..5ada41065 100644
--- a/components/menu/src/hooks/useMenuContext.ts
+++ b/components/menu/src/hooks/useMenuContext.ts
@@ -24,6 +24,7 @@ export interface StoreMenuInfo {
   parentEventKeys: ComputedRef<string[]>;
   childrenEventKeys?: Ref<string[]>;
   isLeaf?: boolean;
+  parentKeys: ComputedRef<Key[]>;
 }
 export interface MenuContextProps {
   isRootMenu: boolean;
diff --git a/components/menu/src/interface.ts b/components/menu/src/interface.ts
index 14a153c18..a752316f7 100644
--- a/components/menu/src/interface.ts
+++ b/components/menu/src/interface.ts
@@ -22,7 +22,7 @@ export interface MenuInfo {
   key: Key;
   eventKey: string;
   keyPath?: Key[];
-  eventKeyPath: Key[];
+  eventKeyPath: string[];
   domEvent: MouseEvent | KeyboardEvent;
 }
 
diff --git a/v2-doc b/v2-doc
index d19705328..a7013ae87 160000
--- a/v2-doc
+++ b/v2-doc
@@ -1 +1 @@
-Subproject commit d197053285b81e77718621c0b5b94cb3b21831a2
+Subproject commit a7013ae87f69dcbcf547f4b023255b8a7a775557