diff --git a/packages/inula/src/event/EventBinding.ts b/packages/inula/src/event/EventBinding.ts
index 01b3ea54..f3e9f58e 100644
--- a/packages/inula/src/event/EventBinding.ts
+++ b/packages/inula/src/event/EventBinding.ts
@@ -16,7 +16,7 @@
 /**
  * 事件绑定实现，分为绑定委托事件和非委托事件
  */
-import { allDelegatedInulaEvents, simulatedDelegatedEvents } from './EventHub';
+import { allDelegatedInulaEvents, portalDefaultDelegatedEvents, simulatedDelegatedEvents } from './EventHub';
 import { isDocument } from '../dom/utils/Common';
 import { getNearestVNode, getNonDelegatedListenerMap } from '../dom/DOMInternalKeys';
 import { asyncUpdates, runDiscreteUpdates } from '../renderer/TreeBuilder';
@@ -89,6 +89,13 @@ export function listenSimulatedDelegatedEvents(root: VNode) {
   }
 }
 
+// portal绑定默认事件
+export function listenPortalEvents(root: VNode) {
+  for (let i = 0; i < portalDefaultDelegatedEvents.length; i++) {
+    lazyDelegateOnRoot(root, portalDefaultDelegatedEvents[i]);
+  }
+}
+
 // 通过inula事件名获取到native事件名
 function getNativeEvtName(inulaEventName, capture) {
   let nativeName;
diff --git a/packages/inula/src/event/EventHub.ts b/packages/inula/src/event/EventHub.ts
index 2f8e8a1f..0dc01c50 100644
--- a/packages/inula/src/event/EventHub.ts
+++ b/packages/inula/src/event/EventHub.ts
@@ -16,6 +16,13 @@
 // 需要委托的inula事件和原生事件对应关系
 export const allDelegatedInulaEvents = new Map();
 
+/**
+ * Portal根节点默认绑定事件，解决常见事件无法冒泡到parent vnode的问题
+ * 例如：parent vNode节点绑定了mousedown事件，子节点为portal节点，子节点下元素未绑定mousedown事件
+ * 此时，点击portal下子元素，mousedown事件无法冒泡到parentNode
+ */
+export const portalDefaultDelegatedEvents = ['onMouseDown', 'onMouseUp', 'onKeyDown', 'onKeyUp', 'onFocus', 'onBlur', 'onClick'];
+
 // 模拟委托事件，不冒泡事件需要利用其他事件来触发冒泡过程
 export const simulatedDelegatedEvents = ['onMouseEnter', 'onMouseLeave'];
 // 所有委托的原生事件集合
diff --git a/packages/inula/src/renderer/render/DomPortal.ts b/packages/inula/src/renderer/render/DomPortal.ts
index 27bad601..24628605 100644
--- a/packages/inula/src/renderer/render/DomPortal.ts
+++ b/packages/inula/src/renderer/render/DomPortal.ts
@@ -17,11 +17,12 @@ import type { VNode } from '../Types';
 import { resetNamespaceCtx, setNamespaceCtx } from '../ContextSaver';
 import { createChildrenByDiff } from '../diff/nodeDiffComparator';
 import { popCurrentRoot, pushCurrentRoot } from '../RootStack';
-import { listenSimulatedDelegatedEvents } from '../../event/EventBinding';
+import { listenPortalEvents, listenSimulatedDelegatedEvents } from '../../event/EventBinding';
 
 export function bubbleRender(processing: VNode) {
   resetNamespaceCtx(processing);
   listenSimulatedDelegatedEvents(processing);
+  listenPortalEvents(processing);
   popCurrentRoot();
 }