diff --git a/packages/plugin-event-bind-dialog/src/index.tsx b/packages/plugin-event-bind-dialog/src/index.tsx
index e2b5653cf..63d1a788d 100644
--- a/packages/plugin-event-bind-dialog/src/index.tsx
+++ b/packages/plugin-event-bind-dialog/src/index.tsx
@@ -52,6 +52,7 @@ export default class EventBindDialog extends Component<PluginProps> {
       let schema = editor.get('designer').project.getSchema();
       let pageNode = schema.componentsTree[0];
       if (pageNode.methods){
+        this.eventList = [];
         for (let key in pageNode.methods){
           this.eventList.push({
             name:key