diff --git a/components/popper/__tests__/__snapshots__/index.test.tsx.snap b/components/popper/__tests__/__snapshots__/index.test.tsx.snap
index 9c1c1690..5c674087 100644
--- a/components/popper/__tests__/__snapshots__/index.test.tsx.snap
+++ b/components/popper/__tests__/__snapshots__/index.test.tsx.snap
@@ -12,7 +12,7 @@ exports[`Popper API test getTriggerElement is useful 1`] = `
     tip="tips text"
   >
     <span
-      className="kd-test-trigger kd-popper-reference"
+      className="kd-popper-reference kd-test-trigger"
     >
       text
     </span>
@@ -23,7 +23,7 @@ exports[`Popper API test getTriggerElement is useful 1`] = `
             test
           </button>
           <span
-            class="kd-test-trigger kd-popper-reference"
+            class="kd-popper-reference kd-test-trigger"
           >
             text
           </span>
diff --git a/components/popper/index.tsx b/components/popper/index.tsx
index b9ea8ebe..f37860ab 100644
--- a/components/popper/index.tsx
+++ b/components/popper/index.tsx
@@ -10,6 +10,7 @@ import React, {
   MutableRefObject,
 } from 'react'
 import { createPopper, Instance, Modifier, OptionsGeneric, Placement, VirtualElement } from '@popperjs/core'
+import ResizeObserver from 'resize-observer-polyfill'
 import { tuple } from '../_utils/type'
 import classnames from 'classnames'
 import debounce from 'lodash/debounce'
@@ -40,7 +41,18 @@ export const Triggers = tuple('hover', 'focus', 'click', 'contextMenu')
 
 export type TriggerType = typeof Triggers[number]
 
-export type Reason = TriggerType | 'scroll' | 'clickOutside' | 'clickToClose' | 'parentHidden' | 'unknown'
+export type Reason =
+  | TriggerType
+  | 'scroll'
+  | 'clickOutside'
+  | 'clickToClose'
+  | 'parentHidden'
+  | 'unknown'
+  | 'selectPopperItem'
+  | 'pressEnter'
+  | 'escEnter'
+  | 'delEnter'
+  | 'otherEnter'
 
 export type RenderFunction = () => React.ReactNode
 
@@ -329,13 +341,17 @@ export const Popper = forwardRef<SubPopup | null, PopperProps>((props, ref) => {
     triggerOpen(nextOpen, triggerType, delay)
   }
 
-  const onClick = () => {
-    if (!visibleInner) {
-      onTriggerInner(true, 'click')
-    } else if (clickToClose) {
-      onTriggerInner(false, 'clickToClose')
-    }
-  }
+  const onClick = debounce(
+    () => {
+      if (!visibleInner) {
+        onTriggerInner(true, 'click')
+      } else if (clickToClose) {
+        onTriggerInner(false, 'clickToClose')
+      }
+    },
+    10,
+    { leading: true },
+  )
 
   const onFocus = () => {
     onTriggerInner(true, 'focus')
@@ -407,6 +423,14 @@ export const Popper = forwardRef<SubPopup | null, PopperProps>((props, ref) => {
     }
   }
 
+  const registerSubPopup = () => {
+    setTimeout(() => {
+      if (popperRef?.current) {
+        parentContext?.registerSubPopup(id, popperRef?.current)
+      }
+    }, 10)
+  }
+
   useEffect(() => {
     onVisibleChangeRef.current = onVisibleChange
   }, [onVisibleChange])
@@ -587,17 +611,42 @@ export const Popper = forwardRef<SubPopup | null, PopperProps>((props, ref) => {
           }))
           popperInstance.current?.forceUpdate()
         }
-        setTimeout(() => {
-          if (popperRef) {
-            if (popperRef?.current) {
-              parentContext?.registerSubPopup(id, popperRef?.current)
-            }
-          }
-        }, 10)
+        registerSubPopup()
       }
     }
   }, [visibleInner, placementInner, arrow])
 
+  useEffect(() => {
+    if (!popperRefDom.current) return
+
+    const lastSize = {
+      width: popperRefDom.current.offsetWidth,
+      height: popperRefDom.current.offsetHeight,
+    }
+
+    const dimensionToObserve =
+      placementInner.startsWith('top') || placementInner.startsWith('bottom') ? 'height' : 'width'
+
+    const resizeObserver = new ResizeObserver((entries) => {
+      entries.forEach((entry) => {
+        const { width, height } = entry.contentRect
+        if (dimensionToObserve === 'height' && height !== lastSize.height) {
+          lastSize.height = height
+          popperInstance.current?.update()
+        } else if (dimensionToObserve === 'width' && width !== lastSize.width) {
+          lastSize.width = width
+          popperInstance.current?.update()
+        }
+      })
+    })
+
+    resizeObserver.observe(popperRefDom.current)
+
+    return () => {
+      resizeObserver?.disconnect()
+    }
+  }, [exist, placementInner])
+
   useEnhancedEffect(() => {
     if (!exist) {
       return undefined
@@ -613,11 +662,7 @@ export const Popper = forwardRef<SubPopup | null, PopperProps>((props, ref) => {
         popperRefDom.current as HTMLElement,
         popperOptionsInner,
       )
-      setTimeout(() => {
-        if (popperRef?.current) {
-          parentContext?.registerSubPopup(id, popperRef?.current)
-        }
-      }, 10)
+      registerSubPopup()
     }
 
     return () => {
@@ -659,7 +704,7 @@ export const Popper = forwardRef<SubPopup | null, PopperProps>((props, ref) => {
 
   const referenceProps = {
     ref: referenceRef,
-    className: classnames(referenceElement?.props?.className, referencePrefixCls),
+    className: classnames(referencePrefixCls, referenceElement?.props?.className),
   }
 
   return (
diff --git a/components/tooltip/index.md b/components/tooltip/index.md
index 6e031e05..eed3c515 100644
--- a/components/tooltip/index.md
+++ b/components/tooltip/index.md
@@ -48,11 +48,32 @@ subtitle: 文字提示
 | clickToClose | 点击浮层是否可关闭 | boolean | true | 1.0.0 |
 | trigger | 触发行为，有 `hover` \| `focus` \| `click` \| `contextMenu` 四个行为可选，可使用数组设置多个触发行为 | string \| string\[] | `hover` | 1.0.0 |
 | visible | 手动控制浮层显隐 | boolean | false | 1.0.0 |
-| onVisibleChange | 显示隐藏的回调 | (visible) => void | - | 1.0.0 |
+| onVisibleChange | 显示隐藏的回调 | (visible, reason:IReason) => void | - | 1.8.29 |
 | autoPlacement | 溢出边界时改变 placement，默认镜向翻动 | boolean | true | 1.8.10 |
-| autoPlacementList | 溢出边界时，placement 备选展示位置 [参考 popper](https://popper.js.org/docs/v2/modifiers/flip/) | placement\[] | - | 1.8.10 |
+| autoPlacementList | 溢出边界时，placement 备选展示位置参考 placement | placement\[] | - | 1.8.10 |
 | customerModifiers | 自定义修饰符 [参考 popper](https://popper.js.org/docs/v2/modifiers/) | (modifiers: Partial<Modifier<any, any>>\[]) => Partial<Modifier<any, any>>\[] | - | 1.8.10 |
 
+# Tooltip.onVisibleChange.IReason
+
+其它组件:（如 `Dropdown` / `Select` / `DatePicker` / `ColorPicker` / `CityPicker` / `Cascader`）使用时也会触发 IReason，下列简称`其它组件`
+
+| 参数             | 说明                                                     | 版本   |
+| ---------------- | -------------------------------------------------------- | ------ |
+| click            | 点击，仅在 placement 为 click 时出现                     | 1.8.29 |
+| hover            | 悬停，仅在 placement 为 hover 时出现                     | 1.8.29 |
+| focus            | 聚集，仅在 placement 为 focus 时出现                     | 1.8.29 |
+| contextMenu      | 点击右键，仅在 placement 为 contextMenu 时出现           | 1.8.29 |
+| clickToClose     | 再次次点击触发元素关闭，仅在 clickToClose 为 true 时出现 | 1.8.29 |
+| clickOutside     | 点击外部关闭                                             | 1.8.29 |
+| parentHidden     | 嵌套 tooltip 中，父级关闭                                | 1.8.29 |
+| scroll           | 滚动导致的关闭，仅在 scrollHidden 为 true 时出现         | 1.8.29 |
+| selectPopperItem | `其它组件` 选中弹窗选项触发关闭                          | 1.8.29 |
+| pressEnter       | `其它组件` 回车选中后触发关闭                            | 1.8.29 |
+| escEnter         | `其它组件` 点击 ESC 触发关闭                             | 1.8.29 |
+| delEnter         | `其它组件` 点击回退删除触发关闭                          | 1.8.29 |
+| otherEnter       | `其它组件` 点击其它键时触发关闭                          | 1.8.29 |
+| unknown          | 受控或其它情况值的改变                                   | 1.8.29 |
+
 ## Design Token
 
 | 分类    | 组件 token                                | 全局 token                | 默认值  |