diff --git a/core/core-frontend/src/views/visualized/data/dataset/form/DatasetUnion.vue b/core/core-frontend/src/views/visualized/data/dataset/form/DatasetUnion.vue
index 30b34bcca3..7753cb475b 100644
--- a/core/core-frontend/src/views/visualized/data/dataset/form/DatasetUnion.vue
+++ b/core/core-frontend/src/views/visualized/data/dataset/form/DatasetUnion.vue
@@ -20,7 +20,7 @@ import { guid } from './util'
 import { HandleMore } from '@/components/handle-more'
 import { propTypes } from '@/utils/propTypes'
 import UnionFieldList from './UnionFieldList.vue'
-import type { Node, Field } from './util'
+import { type Node, type Field, num } from './util'
 import { getTableField } from '@/api/dataset'
 import type { SqlNode } from './AddSql.vue'
 import { cloneDeep } from 'lodash-es'
@@ -344,12 +344,11 @@ const closeEditUnion = () => {
   }
   editUnion.value = false
 }
-let num = +new Date()
 
 const setGuid = (arr, id, datasourceId) => {
   arr.forEach(ele => {
     if (!ele.id) {
-      ele.id = `${++num}`
+      ele.id = `${++num.value}`
       ele.datasetTableId = id
       ele.datasourceId = datasourceId
     }
diff --git a/core/core-frontend/src/views/visualized/data/dataset/form/index.vue b/core/core-frontend/src/views/visualized/data/dataset/form/index.vue
index 69f11d2489..577bc68fd2 100644
--- a/core/core-frontend/src/views/visualized/data/dataset/form/index.vue
+++ b/core/core-frontend/src/views/visualized/data/dataset/form/index.vue
@@ -51,7 +51,7 @@ import UnionEdit from './UnionEdit.vue'
 import type { FormInstance } from 'element-plus-secondary'
 import type { BusiTreeNode } from '@/models/tree/TreeNode'
 import CreatDsGroup from './CreatDsGroup.vue'
-import { guid, getFieldName, timeTypes, type DataSource } from './util'
+import { guid, getFieldName, timeTypes, num, type DataSource } from './util'
 import { fieldType } from '@/utils/attr'
 import { cancelMap } from '@/config/axios/service'
 import { useEmbedded } from '@/store/modules/embedded'
@@ -852,14 +852,12 @@ const allfields = ref([])
 provide('allfields', allfields)
 provide('isCross', isCross)
 
-let num = +new Date()
-
 const expandedD = ref(true)
 const expandedQ = ref(true)
 const setGuid = (arr, id, datasourceId, oldArr) => {
   arr.forEach(ele => {
     if (!ele.id) {
-      ele.id = oldArr.find(itx => itx.originName === ele.originName)?.id || `${++num}`
+      ele.id = oldArr.find(itx => itx.originName === ele.originName)?.id || `${++num.value}`
       ele.datasetTableId = id
       ele.datasourceId = datasourceId
     }
@@ -969,7 +967,6 @@ const confirmEditUnion = () => {
   setGuid(parent.currentDsFields, parent.id, parent.datasourceId, parentOldCurrentDsFields)
   const top = cloneDeep(node)
   const bottom = cloneDeep(parent)
-
   let arr = []
   dfsFieldsTips(arr, datasetDrag.value.getNodeList(), [node.id, parent.id])
   arr = [...arr, ...node.currentDsFields, ...parent.currentDsFields]
diff --git a/core/core-frontend/src/views/visualized/data/dataset/form/util.ts b/core/core-frontend/src/views/visualized/data/dataset/form/util.ts
index 39330ec866..a633adcf33 100644
--- a/core/core-frontend/src/views/visualized/data/dataset/form/util.ts
+++ b/core/core-frontend/src/views/visualized/data/dataset/form/util.ts
@@ -1,13 +1,16 @@
 import { useI18n } from '@/hooks/web/useI18n'
 import SnowflakeId from 'snowflake-id'
-const snowflake = new SnowflakeId()
+import { ref } from 'vue'
 
+const snowflake = new SnowflakeId()
 const { t } = useI18n()
 
 const guid = () => {
   return snowflake.generate()
 }
 
+const num = ref(+new Date())
+
 const timestampFormatDate = (timestamp, showMs?: boolean) => {
   if (!timestamp || timestamp === -1) {
     return '-'
@@ -168,5 +171,6 @@ export {
   fieldOptions,
   guid,
   getFieldName,
+  num,
   timeTypes
 }