diff --git a/packages/action-sheet/README.md b/packages/action-sheet/README.md
index d6e91fef..41e5da49 100644
--- a/packages/action-sheet/README.md
+++ b/packages/action-sheet/README.md
@@ -166,6 +166,7 @@ Page({
 | close-on-click-action | 是否在点击选项后关闭 | _boolean_ | `true` |
 | close-on-click-overlay | 点击遮罩是否关闭菜单 | _boolean_ | `true` |
 | safe-area-inset-bottom | 是否为 iPhoneX 留出底部安全距离 | _boolean_ | `true` |
+| root-portal `v1.11.3` | 是否从页面子树中脱离出来，用于解决各种 fixed 失效问题，微信基础库 >= `2.25.2 ` | _boolean_ | `false` |
 
 ### Events
 
@@ -207,7 +208,7 @@ Page({
 
 ### 外部样式类
 
-| 类名         | 说明           |
-| ------------ | -------------- |
-| custom-class `v1.10.7` | 根节点样式类   |
-| list-class `v1.10.7` | `actions`容器样式类   |
+| 类名                   | 说明                |
+| ---------------------- | ------------------- |
+| custom-class `v1.10.7` | 根节点样式类        |
+| list-class `v1.10.7`   | `actions`容器样式类 |
diff --git a/packages/action-sheet/index.ts b/packages/action-sheet/index.ts
index 5ec30930..24bca10b 100644
--- a/packages/action-sheet/index.ts
+++ b/packages/action-sheet/index.ts
@@ -38,6 +38,10 @@ VantComponent({
       type: Boolean,
       value: true,
     },
+    rootPortal: {
+      type: Boolean,
+      value: false,
+    },
   },
 
   methods: {
diff --git a/packages/action-sheet/index.wxml b/packages/action-sheet/index.wxml
index d59a45d6..6311e334 100644
--- a/packages/action-sheet/index.wxml
+++ b/packages/action-sheet/index.wxml
@@ -9,6 +9,7 @@
   custom-class="van-action-sheet custom-class"
   safe-area-inset-bottom="{{ safeAreaInsetBottom }}"
   close-on-click-overlay="{{ closeOnClickOverlay }}"
+  root-portal="{{ rootPortal }}"
   bind:close="onClickOverlay"
 >
   <view wx:if="{{ title }}" class="van-action-sheet__header">
diff --git a/packages/calendar/README.md b/packages/calendar/README.md
index de21ae24..a5df374e 100644
--- a/packages/calendar/README.md
+++ b/packages/calendar/README.md
@@ -286,6 +286,7 @@ Page({
 | confirm-disabled-text | 确认按钮处于禁用状态时的文字 | _string_ | `确定` |
 | first-day-of-week | 设置周起始日 | _0~6_ | `0` |
 | readonly `v1.9.1` | 是否为只读状态，只读状态下不能选择日期 | _boolean_ | `false` |
+| root-portal `v1.11.3` | 是否从页面子树中脱离出来，用于解决各种 fixed 失效问题，微信基础库 >= `2.25.2 `  | _boolean_ | `false` |
 
 ### Poppable Props
 
diff --git a/packages/calendar/index.ts b/packages/calendar/index.ts
index c156fb06..ff3c778f 100644
--- a/packages/calendar/index.ts
+++ b/packages/calendar/index.ts
@@ -136,6 +136,10 @@ VantComponent({
       value: 0,
     },
     readonly: Boolean,
+    rootPortal: {
+      type: Boolean,
+      value: false,
+    },
   },
 
   data: {
diff --git a/packages/calendar/index.wxml b/packages/calendar/index.wxml
index 9667eef9..9d0fc6bf 100644
--- a/packages/calendar/index.wxml
+++ b/packages/calendar/index.wxml
@@ -13,6 +13,7 @@
   closeable="{{ showTitle || showSubtitle }}"
   close-on-click-overlay="{{ closeOnClickOverlay }}"
   safe-area-inset-bottom="{{ safeAreaInsetBottom }}"
+  root-portal="{{ rootPortal }}"
   bind:enter="onOpen"
   bind:close="onClose"
   bind:after-enter="onOpened"
diff --git a/packages/dialog/README.md b/packages/dialog/README.md
index dd9a34fc..b4c8bba9 100644
--- a/packages/dialog/README.md
+++ b/packages/dialog/README.md
@@ -266,6 +266,7 @@ Page({
 | 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\<boolean\>_ | - |
 | transition | 动画名称，可选值为`fade` | _string_ | `scale` |
 | confirm-button-open-type | 确认按钮的微信开放能力，具体支持可参考 [微信官方文档](https://developers.weixin.qq.com/miniprogram/dev/component/button.html) | _string_ | - |
+| root-portal `v1.11.3` | 是否从页面子树中脱离出来，用于解决各种 fixed 失效问题，微信基础库 >= `2.25.2 `  | _boolean_ | `false` |
 
 ### OpenType Props
 
diff --git a/packages/dialog/index.ts b/packages/dialog/index.ts
index c193f122..5ec1628e 100644
--- a/packages/dialog/index.ts
+++ b/packages/dialog/index.ts
@@ -68,6 +68,10 @@ VantComponent({
       type: String,
       value: 'scale',
     },
+    rootPortal: {
+      type: Boolean,
+      value: false,
+    },
   },
 
   data: {
diff --git a/packages/dialog/index.wxml b/packages/dialog/index.wxml
index 7cf12d80..a1d8e3cf 100644
--- a/packages/dialog/index.wxml
+++ b/packages/dialog/index.wxml
@@ -9,6 +9,7 @@
   custom-style="width: {{ utils.addUnit(width) }};{{ customStyle }}"
   overlay-style="{{ overlayStyle }}"
   close-on-click-overlay="{{ closeOnClickOverlay }}"
+  root-portal="{{ rootPortal }}"
   bind:close="onClickOverlay"
 >
   <view
diff --git a/packages/share-sheet/README.md b/packages/share-sheet/README.md
index 3966e348..2855e602 100644
--- a/packages/share-sheet/README.md
+++ b/packages/share-sheet/README.md
@@ -168,6 +168,7 @@ Page({
 | overlay | 是否显示遮罩层 | _boolean_ | `true` |
 | close-on-click-overlay | 是否在点击遮罩层后关闭 | _boolean_ | `true` |
 | safe-area-inset-bottom | 是否开启底部安全区适配 | _boolean_ | `true` |
+| root-portal `v1.11.3` | 是否从页面子树中脱离出来，用于解决各种 fixed 失效问题，微信基础库 >= `2.25.2 `  | _boolean_ | `false` |
 
 ### Option 数据结构
 
diff --git a/packages/share-sheet/index.ts b/packages/share-sheet/index.ts
index 029d7246..e8b97dad 100644
--- a/packages/share-sheet/index.ts
+++ b/packages/share-sheet/index.ts
@@ -37,6 +37,10 @@ VantComponent({
       type: null,
       value: 300,
     },
+    rootPortal: {
+      type: Boolean,
+      value: false,
+    },
   },
 
   methods: {
diff --git a/packages/share-sheet/index.wxml b/packages/share-sheet/index.wxml
index cefc3af4..72a5b253 100644
--- a/packages/share-sheet/index.wxml
+++ b/packages/share-sheet/index.wxml
@@ -11,6 +11,7 @@
   overlay-style="{{ overlayStyle }}"
   close-on-click-overlay="{{ closeOnClickOverlay }}"
   safe-area-inset-bottom="{{ safeAreaInsetBottom }}"
+  root-portal="{{ rootPortal }}"
   bind:close="onClose"
   bind:click-overlay="onClickOverlay"
 >