diff --git a/packages/table/src/store/tree.js b/packages/table/src/store/tree.js
index 6d0c36d5ac3..9dce14fb68d 100644
--- a/packages/table/src/store/tree.js
+++ b/packages/table/src/store/tree.js
@@ -53,8 +53,6 @@ export default {
 
   watch: {
     normalizedData: 'updateTreeData',
-    // expandRowKeys 在 ExpandTable 中也有使用
-    expandRowKeys: 'updateTreeData',
     normalizedLazyNode: 'updateTreeData'
   },
 
@@ -155,6 +153,7 @@ export default {
 
     updateTreeExpandKeys(value) {
       this.states.expandRowKeys = value;
+      this.updateTreeData();
     },
 
     toggleTreeExpansion(row, expanded) {