diff --git a/ui/src/components/dynamics-form/constructor/items/TreeSelectConstructor.vue b/ui/src/components/dynamics-form/constructor/items/TreeSelectConstructor.vue
index f28adb93011..047725f8c3f 100644
--- a/ui/src/components/dynamics-form/constructor/items/TreeSelectConstructor.vue
+++ b/ui/src/components/dynamics-form/constructor/items/TreeSelectConstructor.vue
@@ -239,6 +239,7 @@ const rander = (form_data: any) => {
 
 defineExpose({ getData, rander })
 onMounted(() => {
+  formValue.value.treeData = []
   formValue.value.default_value = ''
   if (formValue.value.show_default_value === undefined) {
     formValue.value.show_default_value = true