diff --git a/src/dialog/README.md b/src/dialog/README.md
index d391813a7..5965a63e0 100644
--- a/src/dialog/README.md
+++ b/src/dialog/README.md
@@ -72,7 +72,7 @@ Dialog.alert({
 ### Asnyc Close
 
 ```js
-const beforeClose = (action, done) =>
+const beforeClose = (action) =>
   new Promsie((resolve) => {
     setTimeout(() => {
       resolve(action === 'confirm');
@@ -157,7 +157,7 @@ export default {
 | closeOnClickOverlay | Whether to close when overlay is clicked | _boolean_ | `false` |
 | lockScroll | Whether to lock body scroll | _boolean_ | `true` |
 | allowHtml `v2.8.7` | Whether to allow HTML rendering in message | _boolean_ | `false` |
-| beforeClose | Callback function before close,<br>call done() to close dialog,<br>call done(false) to cancel loading | (action: string, done: Function) => void | - |
+| beforeClose | Callback function before close | _(action) => boolean \| Promise_ | - |
 | transition | Transition, equivalent to `name` prop of [transtion](https://v3.vuejs.org/api/built-in-components.html#transition) | _string_ | - |
 | teleport | Return the mount node for Dialog | _string \| Element_ | `body` |
 
diff --git a/src/dialog/README.zh-CN.md b/src/dialog/README.zh-CN.md
index 5670d8f01..c6f6d67c2 100644
--- a/src/dialog/README.zh-CN.md
+++ b/src/dialog/README.zh-CN.md
@@ -100,7 +100,7 @@ Dialog.alert({
 通过 `beforeClose` 属性可以传入一个回调函数，在弹窗关闭前进行特定操作。
 
 ```js
-const beforeClose = (action, done) =>
+const beforeClose = (action) =>
   new Promsie((resolve) => {
     setTimeout(() => {
       if (action === 'confirm') {
@@ -192,7 +192,7 @@ export default {
 | closeOnClickOverlay | 是否在点击遮罩层后关闭弹窗 | _boolean_ | `false` |
 | lockScroll | 是否锁定背景滚动 | _boolean_ | `true` |
 | allowHtml `v2.8.7` | 是否允许 message 内容中渲染 HTML | _boolean_ | `false` |
-| beforeClose | 关闭前的回调函数，<br>调用 done() 后关闭弹窗，<br>调用 done(false) 阻止弹窗关闭 | _(action, done) => void_ | - |
+| beforeClose | 关闭前的回调函数，返回 `false` 可阻止关闭，支持返回 Promise | _(action) => boolean \| Promise_ | - |
 | transition | 动画类名，等价于 [transtion](https://v3.cn.vuejs.org/api/built-in-components.html#transition) 的`name`属性 | _string_ | - |
 | teleport | 指定挂载的节点，[用法示例](#/zh-CN/popup#zhi-ding-gua-zai-wei-zhi) | _string \| Element_ | `body` |