diff --git a/.github/workflows/generate_api_doc.yml b/.github/workflows/generate_api_doc.yml
new file mode 100644
index 000000000..10053fdd5
--- /dev/null
+++ b/.github/workflows/generate_api_doc.yml
@@ -0,0 +1,40 @@
+name: Generate API DOC
+
+on:
+  push:
+    branches: [ master ]
+    paths:
+      - '**/**/*.d.ts'
+
+permissions:
+  contents: write
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [16.x]
+
+    steps:
+    - uses: actions/checkout@v3
+
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v3
+      with:
+        node-version: ${{ matrix.node-version }}
+        cache: 'npm'
+
+    - name: Install node packages
+      run: npm install
+
+    - name: Generate api doc
+      run: npm run apidoc
+
+    - name: Commit doc
+      run: |
+        git config user.name "GitHub Actions Bot"
+        git config user.email "<>"
+        git commit -a -m "Update API doc"
+        git push
diff --git a/components/button/Button.d.ts b/components/button/Button.d.ts
index d4b9da010..e4c8e8de4 100755
--- a/components/button/Button.d.ts
+++ b/components/button/Button.d.ts
@@ -32,7 +32,7 @@ export interface ButtonProps extends ButtonHTMLAttributes {
     icon?: string | undefined;
     /**
      * Position of the icon.
-     * @defaultValue 'left'
+     * @defaultValue left
      */
     iconPos?: 'left' | 'right' | 'top' | 'bottom' | undefined;
     /**
diff --git a/doc/common/apidoc/index.json b/doc/common/apidoc/index.json
index bf3c11411..3a3aaa059 100644
--- a/doc/common/apidoc/index.json
+++ b/doc/common/apidoc/index.json
@@ -3629,7 +3629,7 @@
                             "optional": true,
                             "readonly": false,
                             "type": "\"left\" | \"top\" | \"bottom\" | \"right\"",
-                            "default": "'left'",
+                            "default": "left",
                             "description": "Position of the icon."
                         },
                         {