diff --git a/src/components/Category/CategoryCreateModal.vue b/src/components/Category/CategoryCreateModal.vue
new file mode 100644
index 00000000..37fbe943
--- /dev/null
+++ b/src/components/Category/CategoryCreateModal.vue
@@ -0,0 +1,152 @@
+<template>
+  <a-modal v-model="modalVisible" :afterClose="onClose" :width="512" destroyOnClose title="新建分类">
+    <a-form-model
+      ref="categoryForm"
+      :label-col="{ span: 4 }"
+      :model="form.model"
+      :rules="form.rules"
+      :wrapper-col="{ span: 20 }"
+      labelAlign="left"
+    >
+      <a-form-model-item help="* 页面上所显示的名称" label="名称：" prop="name">
+        <a-input ref="nameInput" v-model="form.model.name" />
+      </a-form-model-item>
+      <a-form-model-item help="* 一般为单个分类页面的标识，最好为英文" label="别名：" prop="slug">
+        <a-input v-model="form.model.slug" />
+      </a-form-model-item>
+      <a-form-model-item label="上级目录：" prop="parentId">
+        <category-select-tree :categories="list.data" :category-id.sync="form.model.parentId" />
+      </a-form-model-item>
+      <a-form-model-item help="* 在分类页面可展示，需要主题支持" label="封面图：" prop="thumbnail">
+        <AttachmentInput v-model="form.model.thumbnail" title="选择封面图" />
+      </a-form-model-item>
+      <a-form-model-item help="* 分类密码" label="密码：" prop="password">
+        <a-input-password v-model="form.model.password" autocomplete="new-password" />
+      </a-form-model-item>
+      <a-form-model-item help="* 分类描述，需要主题支持" label="描述：" prop="description">
+        <a-input v-model="form.model.description" :autoSize="{ minRows: 3 }" type="textarea" />
+      </a-form-model-item>
+    </a-form-model>
+
+    <template #footer>
+      <ReactiveButton
+        :errored="form.errored"
+        :loading="form.saving"
+        erroredText="保存失败"
+        loadedText="保存成功"
+        text="保存"
+        type="primary"
+        @callback="handleSavedCallback"
+        @click="handleCreate"
+      ></ReactiveButton>
+      <a-button @click="modalVisible = false">关闭</a-button>
+    </template>
+  </a-modal>
+</template>
+<script>
+import CategorySelectTree from '@/components/Category/CategorySelectTree'
+import apiClient from '@/utils/api-client'
+
+export default {
+  name: 'CategoryCreateModal',
+  components: {
+    CategorySelectTree
+  },
+  props: {
+    visible: {
+      type: Boolean,
+      default: false
+    }
+  },
+  data() {
+    return {
+      list: {
+        data: [],
+        loading: false
+      },
+      form: {
+        model: {},
+        saving: false,
+        errored: false,
+        rules: {
+          name: [
+            { required: true, message: '* 分类名称不能为空', trigger: ['change'] },
+            { max: 255, message: '* 分类名称的字符长度不能超过 255', trigger: ['change'] }
+          ],
+          slug: [{ max: 255, message: '* 分类别名的字符长度不能超过 255', trigger: ['change'] }],
+          thumbnail: [{ max: 1023, message: '* 封面图链接的字符长度不能超过 1023', trigger: ['change'] }],
+          description: [{ max: 100, message: '* 分类描述的字符长度不能超过 100', trigger: ['change'] }]
+        }
+      }
+    }
+  },
+  computed: {
+    modalVisible: {
+      get() {
+        return this.visible
+      },
+      set(value) {
+        this.$emit('update:visible', value)
+      }
+    }
+  },
+  created() {
+    this.handleListCategories()
+  },
+  watch: {
+    modalVisible(value) {
+      if (value) {
+        this.$nextTick(() => {
+          this.$refs.nameInput.focus()
+        })
+      }
+    }
+  },
+  methods: {
+    async handleListCategories() {
+      try {
+        this.list.loading = true
+
+        const { data } = await apiClient.category.list({})
+        this.list.data = data
+      } catch (e) {
+        this.$log.error('Failed to get categories', e)
+      } finally {
+        this.list.loading = false
+      }
+    },
+
+    handleCreate() {
+      this.$refs.categoryForm.validate(async valid => {
+        if (valid) {
+          try {
+            this.form.saving = true
+
+            await apiClient.category.create(this.form.model)
+          } catch (e) {
+            this.form.errored = true
+            this.$log.error('Failed to create category', e)
+          } finally {
+            setTimeout(() => {
+              this.form.saving = false
+            }, 400)
+          }
+        }
+      })
+    },
+
+    handleSavedCallback() {
+      if (this.form.errored) {
+        this.form.errored = false
+      } else {
+        this.form.model = {}
+        this.handleListCategories()
+      }
+    },
+
+    onClose() {
+      this.$emit('close')
+    }
+  }
+}
+</script>
diff --git a/src/components/Post/PostSettingModal.vue b/src/components/Post/PostSettingModal.vue
index bdf7b84f..e3d376d9 100644
--- a/src/components/Post/PostSettingModal.vue
+++ b/src/components/Post/PostSettingModal.vue
@@ -35,7 +35,10 @@
               </a-input>
             </a-form-item>
             <a-form-item label="分类目录">
-              <category-tree v-model="form.model.categoryIds" />
+              <a-space direction="vertical">
+                <category-tree ref="categoryTree" v-model="form.model.categoryIds" />
+                <a-button type="dashed" @click="categoryCreateModalVisible = true">新增</a-button>
+              </a-space>
             </a-form-item>
             <a-form-item label="标签">
               <TagSelect v-model="form.model.tagIds" />
@@ -161,6 +164,7 @@
       :visible.sync="attachmentSelectVisible"
       @confirm="handleSelectPostThumbnail"
     />
+    <CategoryCreateModal :visible.sync="categoryCreateModalVisible" @close="onCategoryCreateModalClose" />
   </a-modal>
 </template>
 <script>
@@ -168,6 +172,7 @@
 import CategoryTree from '../Category/CategoryTree'
 import TagSelect from '../Tag/TagSelect'
 import MetaEditor from '@/components/Post/MetaEditor'
+import CategoryCreateModal from '@/components/Category/CategoryCreateModal'
 
 // libs
 import { mixin, mixinDevice } from '@/mixins/mixin.js'
@@ -185,7 +190,8 @@ export default {
   components: {
     CategoryTree,
     TagSelect,
-    MetaEditor
+    MetaEditor,
+    CategoryCreateModal
   },
   props: {
     visible: {
@@ -220,7 +226,8 @@ export default {
 
       templates: [],
 
-      attachmentSelectVisible: false
+      attachmentSelectVisible: false,
+      categoryCreateModalVisible: false
     }
   },
   computed: {
@@ -456,6 +463,10 @@ export default {
     onClosed() {
       this.$emit('onClose')
       this.$emit('onUpdate', this.form.model)
+    },
+
+    onCategoryCreateModalClose() {
+      this.$refs.categoryTree.handleListCategories()
     }
   }
 }