diff --git a/ui/src/workflow/common/NodeCascader.vue b/ui/src/workflow/common/NodeCascader.vue
index dfb50f2f0..2a0209618 100644
--- a/ui/src/workflow/common/NodeCascader.vue
+++ b/ui/src/workflow/common/NodeCascader.vue
@@ -37,19 +37,18 @@ const options = ref<Array<any>>([])
 
 function visibleChange(bool: boolean) {
   if (bool) {
-    options.value = []
-    getIncomingNode(props.nodeModel.id)
+    options.value = getIncomingNode(props.nodeModel.id)
   }
 }
 
-function _getIncomingNode(id: String, startId: String) {
+function _getIncomingNode(id: String, startId: String, value: Array<any>) {
   let list = props.nodeModel.graphModel.getNodeIncomingNode(id)
   list = list.filter((item: any) => item.id !== startId)
   let firstElement = null
   if (list.length > 0) {
     list.forEach((item: any) => {
-      if (!options.value.some((obj: any) => obj.id === item.id)) {
-        options.value.unshift({
+      if (!value.some((obj: any) => obj.id === item.id)) {
+        value.unshift({
           value: item.id,
           label: item.properties.stepName,
           type: item.type,
@@ -67,19 +66,21 @@ function _getIncomingNode(id: String, startId: String) {
     })
 
     list.forEach((item: any) => {
-      _getIncomingNode(item.id, startId)
+      _getIncomingNode(item.id, startId, value)
     })
   }
   if (firstElement) {
-    options.value.unshift(firstElement)
+    value.unshift(firstElement)
   }
+  return value
 }
 function getIncomingNode(id: string) {
-  _getIncomingNode(id, id)
+  return _getIncomingNode(id, id, [])
 }
 const validate = () => {
-  getIncomingNode(props.nodeModel.id)
-  if (!data.value) {
+  const incomingNodeValue = getIncomingNode(props.nodeModel.id)
+  options.value = incomingNodeValue
+  if (!data.value || data.value.length === 0) {
     return Promise.reject('引用变量必填')
   }
   if (data.value.length < 2) {
@@ -87,18 +88,20 @@ const validate = () => {
   }
   const node_id = data.value[0]
   const node_field = data.value[1]
-  const nodeParent = options.value.find((item: any) => item.value === node_id)
+  const nodeParent = incomingNodeValue.find((item: any) => item.value === node_id)
   if (!nodeParent) {
+    data.value = []
     return Promise.reject('不存在的引用变量')
   }
   if (!nodeParent.children.some((item: any) => item.value === node_field)) {
+    data.value = []
     return Promise.reject('不存在的引用变量')
   }
   return Promise.resolve('')
 }
 defineExpose({ validate })
 onMounted(() => {
-  getIncomingNode(props.nodeModel.id)
+  options.value = getIncomingNode(props.nodeModel.id)
 })
 </script>
 <style scoped></style>