diff --git a/packages/components/cascader-panel/src/index.vue b/packages/components/cascader-panel/src/index.vue
index 89b8dc62af..f52c475a04 100644
--- a/packages/components/cascader-panel/src/index.vue
+++ b/packages/components/cascader-panel/src/index.vue
@@ -8,7 +8,7 @@
       :key="index"
       :ref="(item) => (menuList[index] = item)"
       :index="index"
-      :nodes="menu"
+      :nodes="[...menu]"
     />
   </div>
 </template>