diff --git a/docs/markdown/migrate-from-v2.zh-CN.md b/docs/markdown/migrate-from-v2.zh-CN.md
index 6e49a748a..47081d140 100644
--- a/docs/markdown/migrate-from-v2.zh-CN.md
+++ b/docs/markdown/migrate-from-v2.zh-CN.md
@@ -174,6 +174,7 @@ Vue 3.0 中增加了 `Teleport` 组件，提供将组件渲染到任意 DOM 位
 
 #### Dialog
 
+- 默认关闭 `allow-html` 属性
 - `before-close` 属性用法调整，不再传入 done 函数，而是通过返回 Promise 来控制
 
 #### ImagePreview
@@ -183,6 +184,7 @@ Vue 3.0 中增加了 `Teleport` 组件，提供将组件渲染到任意 DOM 位
 #### Picker
 
 - `change` 事件参数不再传入组件实例
+- 默认关闭 `allow-html` 属性
 - 默认开启 `show-toolbar` 属性
 - 级联选择下，`confirm`、`change` 事件返回的回调参数将包含为完整的选项对象。
 
diff --git a/src/dialog/Dialog.js b/src/dialog/Dialog.js
index d54f9f817..3104ad152 100644
--- a/src/dialog/Dialog.js
+++ b/src/dialog/Dialog.js
@@ -27,6 +27,7 @@ export default createComponent({
     width: [Number, String],
     message: String,
     callback: Function,
+    allowHtml: Boolean,
     className: null,
     beforeClose: Function,
     messageAlign: String,
@@ -36,10 +37,6 @@ export default createComponent({
     confirmButtonText: String,
     confirmButtonColor: String,
     closeOnClickOverlay: Boolean,
-    allowHtml: {
-      type: Boolean,
-      default: true,
-    },
     transition: {
       type: String,
       default: 'van-dialog-bounce',
diff --git a/src/dialog/README.md b/src/dialog/README.md
index 26aa5b11e..18d5ba6a1 100644
--- a/src/dialog/README.md
+++ b/src/dialog/README.md
@@ -155,7 +155,7 @@ export default {
 | closeOnPopstate | Whether to close when popstate | _boolean_ | `true` |
 | closeOnClickOverlay | Whether to close when click overlay | _boolean_ | `false` |
 | lockScroll | Whether to lock body scroll | _boolean_ | `true` |
-| allowHtml `v2.8.7` | Whether to allow HTML rendering in message | _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 | - |
 | transition | Transition, equivalent to `name` prop of [transtion](https://vuejs.org/v2/api/#transition) | _string_ | - |
 | teleport | Return the mount node for Dialog | _string \| Element_ | `body` |
@@ -183,7 +183,7 @@ export default {
 | close-on-click-overlay | Whether to close when click overlay | _boolean_ | `false` |
 | lazy-render | Whether to lazy render util appeared | _boolean_ | `true` |
 | lock-scroll | Whether to lock background scroll | _boolean_ | `true` |
-| allow-html `v2.8.7` | Whether to allow HTML rendering in message | _boolean_ | `true` |
+| allow-html `v2.8.7` | Whether to allow HTML rendering in message | _boolean_ | `false` |
 | before-close | Callback function before close | _(action) => boolean \| Promise_ | - |
 | transition | Transition, equivalent to `name` prop of [transtion](https://vuejs.org/v2/api/#transition) | _string_ | - |
 | teleport | Return the mount node for Dialog | _string \| Element_ | - |
diff --git a/src/dialog/README.zh-CN.md b/src/dialog/README.zh-CN.md
index 6a4e594c7..1d2f1540e 100644
--- a/src/dialog/README.zh-CN.md
+++ b/src/dialog/README.zh-CN.md
@@ -190,7 +190,7 @@ export default {
 | closeOnPopstate | 是否在页面回退时自动关闭 | _boolean_ | `true` |
 | 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_ | `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_ | - |
 | transition | 动画类名，等价于 [transtion](https://cn.vuejs.org/v2/api/index.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` |
@@ -220,7 +220,7 @@ export default {
 | close-on-click-overlay | 是否在点击遮罩层后关闭弹窗 | _boolean_ | `false` |
 | lazy-render | 是否在显示弹层时才渲染节点 | _boolean_ | `true` |
 | lock-scroll | 是否锁定背景滚动 | _boolean_ | `true` |
-| allow-html `v2.8.7` | 是否允许 message 内容中渲染 HTML | _boolean_ | `true` |
+| allow-html `v2.8.7` | 是否允许 message 内容中渲染 HTML | _boolean_ | `false` |
 | before-close | 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://cn.vuejs.org/v2/api/index.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_ | - |
diff --git a/src/dialog/index.js b/src/dialog/index.js
index 9631bdf5d..dbe8350c0 100644
--- a/src/dialog/index.js
+++ b/src/dialog/index.js
@@ -45,7 +45,7 @@ Dialog.defaultOptions = {
   callback: null,
   teleport: 'body',
   className: '',
-  allowHtml: true,
+  allowHtml: false,
   lockScroll: true,
   transition: 'van-dialog-bounce',
   beforeClose: null,
diff --git a/src/picker/README.md b/src/picker/README.md
index ed1b29bc9..8bc98736f 100644
--- a/src/picker/README.md
+++ b/src/picker/README.md
@@ -249,7 +249,7 @@ export default {
 | toolbar-position | Toolbar position, cat be set to `bottom` | _string_ | `top` |
 | loading | Whether to show loading prompt | _boolean_ | `false` |
 | show-toolbar | Whether to show toolbar | _boolean_ | `true` |
-| allow-html | Whether to allow HTML in option text | _boolean_ | `true` |
+| allow-html | Whether to allow HTML in option text | _boolean_ | `false` |
 | default-index | Default value index of single column picker | _number \| string_ | `0` |
 | item-height `v2.8.6` | Option height, supports `px` `vw` `rem` unit, default `px` | _number \| string_ | `44` |
 | visible-item-count | Count of visible columns | _number \| string_ | `6` |
diff --git a/src/picker/README.zh-CN.md b/src/picker/README.zh-CN.md
index b75a409a7..efa63a6b3 100644
--- a/src/picker/README.zh-CN.md
+++ b/src/picker/README.zh-CN.md
@@ -272,7 +272,7 @@ export default {
 | toolbar-position | 顶部栏位置，可选值为`bottom` | _string_ | `top` |
 | loading | 是否显示加载状态 | _boolean_ | `false` |
 | show-toolbar | 是否显示顶部栏 | _boolean_ | `true` |
-| allow-html | 是否允许选项内容中渲染 HTML | _boolean_ | `true` |
+| allow-html | 是否允许选项内容中渲染 HTML | _boolean_ | `false` |
 | default-index | 单列选择时，默认选中项的索引 | _number \| string_ | `0` |
 | item-height `v2.8.6` | 选项高度，支持 `px` `vw` `rem` 单位，默认 `px` | _number \| string_ | `44` |
 | visible-item-count | 可见的选项个数 | _number \| string_ | `6` |
diff --git a/src/picker/shared.ts b/src/picker/shared.ts
index 7f0c64a5b..0a59b3dfe 100644
--- a/src/picker/shared.ts
+++ b/src/picker/shared.ts
@@ -14,6 +14,7 @@ export const pickerProps = {
   title: String,
   loading: Boolean,
   readonly: Boolean,
+  allowHtml: Boolean,
   itemHeight: [Number, String],
   cancelButtonText: String,
   confirmButtonText: String,
@@ -21,10 +22,6 @@ export const pickerProps = {
     type: Boolean,
     default: true,
   },
-  allowHtml: {
-    type: Boolean,
-    default: true,
-  },
   visibleItemCount: {
     type: [Number, String],
     default: 6,