diff --git a/packages/components/tag/src/tag.vue b/packages/components/tag/src/tag.vue
index 89be267299..f71a6b29d8 100644
--- a/packages/components/tag/src/tag.vue
+++ b/packages/components/tag/src/tag.vue
@@ -75,6 +75,9 @@ const handleClick = (event: MouseEvent) => {
 
 const handleVNodeMounted = (vnode: VNode) => {
   // @ts-ignore
-  vnode.component.subTree.component.bum = null
+  if (vnode?.component?.subTree?.component?.bum) {
+    // @ts-ignore
+    vnode.component.subTree.component.bum = null
+  }
 }
 </script>