diff --git a/src/components/cascader/caspanel.vue b/src/components/cascader/caspanel.vue
index 55246838..327b5ef1 100644
--- a/src/components/cascader/caspanel.vue
+++ b/src/components/cascader/caspanel.vue
@@ -77,8 +77,10 @@
 
                 // return value back recursion  // 向上递归，设置临时选中值（并非真实选中）
                 const backItem = this.getBaseItem(item);
-                this.tmpItem = backItem;
-                this.emitUpdate([backItem]);
+                if (backItem.label !== this.tmpItem.label || backItem.value !== this.tmpItem.value) {
+                    this.tmpItem = backItem;
+                    this.emitUpdate([backItem]);
+                }
                 if (item.children && item.children.length){
                     this.sublist = item.children;
                     this.dispatch('Cascader', 'on-result-change', {