diff --git a/components/dropdown/dropdown.tsx b/components/dropdown/dropdown.tsx
index 67c10fd0b3..3fca0f60f5 100644
--- a/components/dropdown/dropdown.tsx
+++ b/components/dropdown/dropdown.tsx
@@ -6,7 +6,7 @@ export interface DropDownProps {
   trigger?: Array<'click' | 'hover'>;
   overlay: React.ReactNode;
   style?: React.CSSProperties;
-  onVisibleChange?: (e: {visible: boolean}) => void;
+  onVisibleChange?: (visible?: boolean) => void;
   visible?: boolean;
   align?: Object;
   getPopupContainer?: () => HTMLElement;
diff --git a/components/dropdown/index.zh-CN.md b/components/dropdown/index.zh-CN.md
index 625317861e..1ac4cb72a7 100644
--- a/components/dropdown/index.zh-CN.md
+++ b/components/dropdown/index.zh-CN.md
@@ -21,7 +21,7 @@ title: Dropdown
 | overlay     | 菜单         | [Menu](/components/menu) | -     |
 | getPopupContainer | 菜单渲染父节点。默认渲染到 body 上，如果你遇到菜单滚动定位问题，试试修改为滚动的区域，并相对其定位。[示例](http://codepen.io/anon/pen/xVBOVQ?editors=001) | Function(triggerNode) | () => document.body |
 | visible     | 菜单是否显示 | Boolean   | -           |
-| onVisibleChange  | 菜单显示状态改变时调用，参数为 { visible } | Function | - |
+| onVisibleChange  | 菜单显示状态改变时调用，参数为 visible | Function | - |
 
 菜单可由 `antd.Menu` 取得，可设置 `onSelect` 回调，菜单还包括菜单项 `antd.Menu.Item`，分割线 `antd.Menu.Divider`。
 
@@ -36,4 +36,4 @@ title: Dropdown
 | trigger     | 触发下拉的行为   | ['click'] or ['hover'] | ['hover']        |
 | overlay     | 菜单         | [Menu](/components/menu/) | -     |
 | visible     | 菜单是否显示 | Boolean   | -           |
-| onVisibleChange  | 菜单显示状态改变时调用，参数为 { visible } | Function | - |
+| onVisibleChange  | 菜单显示状态改变时调用，参数为 visible | Function | - |