diff --git a/src/components/selection/TreeDataSelectModal.vue b/src/components/selection/TreeDataSelectModal.vue
index 821e80ee..46e82264 100644
--- a/src/components/selection/TreeDataSelectModal.vue
+++ b/src/components/selection/TreeDataSelectModal.vue
@@ -279,7 +279,7 @@ export default {
           console.log('-----------checkedKeys', this.checkedKeys, checkedKeys)
           if (info.checked) {
             // 是选中数据了
-            this.checkedKeys = [...this.checkedKeys, ...checkedKeys.checked]
+            this.checkedKeys = [...new Set([...this.checkedKeys, ...checkedKeys.checked])]
           } else {
             // 是取消选中了
             this.checkedKeys = this.checkedKeys.filter(item => item !== info.node.dataRef[this.replaceFields.key])