diff --git a/dolphinscheduler-ui-next/src/service/modules/task-group/types.ts b/dolphinscheduler-ui-next/src/service/modules/task-group/types.ts
index 984c33bd0..b59b01380 100644
--- a/dolphinscheduler-ui-next/src/service/modules/task-group/types.ts
+++ b/dolphinscheduler-ui-next/src/service/modules/task-group/types.ts
@@ -28,7 +28,7 @@ interface TaskGroupIdReq {
 interface TaskGroupReq {
   name: string
   projectCode: number
-  groupSize: number
+  groupSize: string
   status: number
   description: string
 }
diff --git a/dolphinscheduler-ui-next/src/views/resource/task-group/option/components/form-modal.tsx b/dolphinscheduler-ui-next/src/views/resource/task-group/option/components/form-modal.tsx
index 703045c8d..00f84de27 100644
--- a/dolphinscheduler-ui-next/src/views/resource/task-group/option/components/form-modal.tsx
+++ b/dolphinscheduler-ui-next/src/views/resource/task-group/option/components/form-modal.tsx
@@ -59,11 +59,11 @@ const FormModal = defineComponent({
         state.formData.id = props.data.id
         state.formData.name = props.data.name
         state.formData.projectCode = props.data.projectCode
-        state.formData.groupSize = props.data.groupSize
+        state.formData.groupSize = String(props.data.groupSize)
         state.formData.status = props.data.status
         state.formData.description = props.data.description
       } else {
-        state.formData.groupSize = 10
+        state.formData.groupSize = '10'
       }
     })
 
diff --git a/dolphinscheduler-ui-next/src/views/resource/task-group/option/use-form.ts b/dolphinscheduler-ui-next/src/views/resource/task-group/option/use-form.ts
index 9fde7f7ac..784665120 100644
--- a/dolphinscheduler-ui-next/src/views/resource/task-group/option/use-form.ts
+++ b/dolphinscheduler-ui-next/src/views/resource/task-group/option/use-form.ts
@@ -29,7 +29,7 @@ export function useForm() {
       id: 0,
       name: '',
       projectCode: 0,
-      groupSize: 0,
+      groupSize: '0',
       status: 1,
       description: ''
     } as TaskGroupUpdateReq,