diff --git a/packages/components/popup/Popup.tsx b/packages/components/popup/Popup.tsx
index 993106979f..22724da8b5 100644
--- a/packages/components/popup/Popup.tsx
+++ b/packages/components/popup/Popup.tsx
@@ -70,6 +70,7 @@ const Popup = forwardRef<PopupRef, PopupProps>((originalProps, ref) => {
   const { keepExpand, keepFade } = useAnimation();
   const { height: windowHeight, width: windowWidth } = useWindowSize();
   const [visible, onVisibleChange] = useControlled(props, 'visible', props.onVisibleChange);
+  const [isOverlayHover, setIsOverlayHover] = useState(false);
 
   const [popupElement, setPopupElement] = useState(null);
   const triggerRef = useRef(null); // 记录 trigger 元素
@@ -153,9 +154,11 @@ const Popup = forwardRef<PopupRef, PopupProps>((originalProps, ref) => {
   }, [visible, updateScrollTop, getTriggerDom]);
 
   function handleExited() {
+    setIsOverlayHover(false);
     !destroyOnClose && popupElement && (popupElement.style.display = 'none');
   }
   function handleEnter() {
+    setIsOverlayHover(true);
     !destroyOnClose && popupElement && (popupElement.style.display = 'block');
   }
 
@@ -242,12 +245,59 @@ const Popup = forwardRef<PopupRef, PopupProps>((originalProps, ref) => {
     </CSSTransition>
   );
 
+  // 处理 shadow root（web component）和 trigger 隐藏的情况
+  function updatePopper() {
+    const popper = popperRef.current;
+    const triggerEl = getRefDom(triggerRef);
+    // 如果没有渲染弹层或不可见则不触发更新
+    if (!popper || !visible) return;
+
+    try {
+      // web component 的元素可能在 shadow root 内，需要特殊处理
+      const root = triggerEl?.getRootNode();
+      if (root && root instanceof ShadowRoot) {
+        // popper 的实例内部结构可能是 state.elements.reference
+        // 尝试兼容不同实现，先赋值再更新
+        if (popper.state) popper.state.elements.reference = triggerEl;
+        popper.update();
+      } else {
+        const rect = triggerEl?.getBoundingClientRect();
+        let parent = triggerEl as HTMLElement | null;
+        while (parent && parent !== document.body) {
+          parent = parent.parentElement;
+        }
+        const isHidden = parent !== document.body || (rect && rect.width === 0 && rect.height === 0);
+        if (!isHidden) {
+          if (popper.state) popper.state.elements.reference = triggerEl;
+          popper.update();
+        } else {
+          // trigger 不在文档流内或被隐藏，则隐藏浮层
+          onVisibleChange(false, { trigger: 'document' });
+        }
+      }
+    } catch (e) {
+      // 直接尝试更新
+      popper.update();
+    }
+  }
+
   useImperativeHandle(ref, () => ({
-    getPopper: () => popperRef.current,
+    // 未公开
     getPopupElement: () => popupRef.current,
+    // 未公开
     getPortalElement: () => portalRef.current,
+    // 未公开
     getPopupContentElement: () => contentRef.current,
+    /// 未公开
     setVisible: (visible: boolean) => onVisibleChange(visible, { trigger: 'document' }),
+    /** 获取 popper 实例 */
+    getPopper: () => popperRef.current,
+    /** 获取浮层元素 */
+    getOverlay: () => portalRef.current,
+    /** 获取浮层悬浮状态 */
+    getOverlayState: () => ({ hover: isOverlayHover }),
+    /** 更新浮层内容 */
+    update: () => updatePopper(),
   }));
 
   return (
diff --git a/packages/components/popup/popup.en-US.md b/packages/components/popup/popup.en-US.md
index 4e74ce91d9..fcd92a2d2f 100644
--- a/packages/components/popup/popup.en-US.md
+++ b/packages/components/popup/popup.en-US.md
@@ -38,6 +38,7 @@ Currently, this can be solved by `Fragment` or other `HTML` elements
 ```
 
 ## API
+
 ### Popup Props
 
 name | type | default | description | required
@@ -64,3 +65,12 @@ zIndex | Number | - | \- | N
 onScroll | Function |  | Typescript：`(context: { e: WheelEvent }) => void`<br/> | N
 onScrollToBottom | Function |  | Typescript：`(context: { e: WheelEvent }) => void`<br/> | N
 onVisibleChange | Function |  | Typescript：`(visible: boolean, context: PopupVisibleChangeContext) => void`<br/>[see more ts definition](https://github.com/Tencent/tdesign-react/blob/develop/packages/components/popup/type.ts)。<br/>`interface PopupVisibleChangeContext { e?: PopupTriggerEvent; trigger?: PopupTriggerSource }`<br/><br/>`type PopupTriggerEvent = MouseEvent \| FocusEvent \| KeyboardEvent`<br/><br/>`type PopupTriggerSource = 'document' \| 'trigger-element-click' \| 'trigger-element-hover' \| 'trigger-element-blur' \| 'trigger-element-focus' \| 'trigger-element-mousedown' \| 'context-menu' \| 'keydown-esc'`<br/> | N
+
+### PopupInstanceFunctions 组件实例方法
+
+name | params | return | description
+-- | -- | -- | --
+getOverlay | \- | `HTMLElement \| null` | used to get overly html element
+getOverlayState | \- | `{ hover: boolean }` | get mouseover state of overlay
+getPopper | \- | `Instance \| null` | get the popup component popper instance。[see more ts definition](https://github.com/Tencent/tdesign-react/blob/develop/packages/components/popup/type.ts)。<br/>`import { Instance } from '@popperjs/core'`<br/>
+update | \- | \- | used to update overlay content
diff --git a/packages/components/popup/popup.md b/packages/components/popup/popup.md
index ae4ab1a5ff..9bfa3a6b11 100644
--- a/packages/components/popup/popup.md
+++ b/packages/components/popup/popup.md
@@ -38,6 +38,7 @@ https://popper.js.org/docs/v2/constructors/#types
 ```
 
 ## API
+
 ### Popup Props
 
 名称 | 类型 | 默认值 | 说明 | 必传
@@ -64,3 +65,12 @@ zIndex | Number | - | 组件层级，Web 侧样式默认为 5500，移动端和
 onScroll | Function |  | TS 类型：`(context: { e: WheelEvent }) => void`<br/>下拉选项滚动事件 | N
 onScrollToBottom | Function |  | TS 类型：`(context: { e: WheelEvent }) => void`<br/>下拉滚动触底事件，常用于滚动到底执行具体业务逻辑 | N
 onVisibleChange | Function |  | TS 类型：`(visible: boolean, context: PopupVisibleChangeContext) => void`<br/>当浮层隐藏或显示时触发，`trigger=document` 表示点击非浮层元素触发；`trigger=context-menu` 表示右击触发。[详细类型定义](https://github.com/Tencent/tdesign-react/blob/develop/packages/components/popup/type.ts)。<br/>`interface PopupVisibleChangeContext { e?: PopupTriggerEvent; trigger?: PopupTriggerSource }`<br/><br/>`type PopupTriggerEvent = MouseEvent \| FocusEvent \| KeyboardEvent`<br/><br/>`type PopupTriggerSource = 'document' \| 'trigger-element-click' \| 'trigger-element-hover' \| 'trigger-element-blur' \| 'trigger-element-focus' \| 'trigger-element-mousedown' \| 'context-menu' \| 'keydown-esc'`<br/> | N
+
+### PopupInstanceFunctions 组件实例方法
+
+名称 | 参数 | 返回值 | 描述
+-- | -- | -- | --
+getOverlay | \- | `HTMLElement \| null` | 获取浮层元素
+getOverlayState | \- | `{ hover: boolean }` | 获取浮层悬浮状态
+getPopper | \- | `Instance \| null` | 获取当前组件 popper 实例。[详细类型定义](https://github.com/Tencent/tdesign-react/blob/develop/packages/components/popup/type.ts)。<br/>`import { Instance } from '@popperjs/core'`<br/>
+update | \- | \- | 更新浮层内容
diff --git a/packages/components/popup/type.ts b/packages/components/popup/type.ts
index bb98bce7ee..c0efb2c278 100644
--- a/packages/components/popup/type.ts
+++ b/packages/components/popup/type.ts
@@ -4,12 +4,13 @@
  * 该文件为脚本自动生成文件，请勿随意修改。如需修改请联系 PMC
  * */
 
+import { Instance } from '@popperjs/core';
 import { TNode, ClassName, Styles, AttachNode } from '../common';
 import { MouseEvent, KeyboardEvent, FocusEvent, WheelEvent } from 'react';
 
 export interface TdPopupProps {
   /**
-   * 制定挂载节点。数据类型为 String 时，会被当作选择器处理，进行节点查询。示例：'body' 或 () => document.body
+   * 指定挂载节点。数据类型为 String 时，会被当作选择器处理，进行节点查询。示例：'body' 或 () => document.body
    * @default 'body'
    */
   attach?: AttachNode;
@@ -104,6 +105,26 @@ export interface TdPopupProps {
   onVisibleChange?: (visible: boolean, context: PopupVisibleChangeContext) => void;
 }
 
+/** 组件实例方法 */
+export interface PopupInstanceFunctions {
+  /**
+   * 获取浮层元素
+   */
+  getOverlay?: () => HTMLElement | null;
+  /**
+   * 获取浮层悬浮状态
+   */
+  getOverlayState?: () => { hover: boolean };
+  /**
+   * 获取当前组件 popper 实例
+   */
+  getPopper?: () => Instance | null;
+  /**
+   * 更新浮层内容
+   */
+  update?: () => void;
+}
+
 export type PopupPlacement =
   | 'top'
   | 'left'