diff --git a/frontend/src/api/task.ts b/frontend/src/api/task.ts
index 3afbb5e..4dffdfb 100644
--- a/frontend/src/api/task.ts
+++ b/frontend/src/api/task.ts
@@ -580,8 +580,8 @@ export const getPendingApprovalTaskGroups = () => {
 /**
  * 审核通过子任务组
  */
-export const approveTaskGroup = (groupId: number, data: { assignedReceiverId?: number; comment?: string }) => {
-  return request.post<any>(`/tasks/items/groups/${groupId}/approve`, data)
+export const approveTaskGroup = (taskId: number, data: { groupNo: number; assignedReceiverId?: number; comment?: string }) => {
+  return request.post<any>('/tasks/items/groups/approve', { taskId, ...data })
 }
 
 /**
diff --git a/frontend/src/views/TaskHall.vue b/frontend/src/views/TaskHall.vue
index a93f141..1aa6c69 100644
--- a/frontend/src/views/TaskHall.vue
+++ b/frontend/src/views/TaskHall.vue
@@ -3353,7 +3353,12 @@ const handleApproveTaskGroup = async (item: ApprovalItem) => {
         try {
           approvalLoading.value = true
           
-          await taskApi.approveTaskGroup(item.id, {
+          // 从 item.data 获取 taskId 和 groupNo
+          const taskId = item.data?.taskId || item.id
+          const groupNo = item.data?.groupNo || item.data?.groupId || 1
+          
+          await taskApi.approveTaskGroup(taskId, {
+            groupNo,
             assignedReceiverId: assignType.value === 'manual' ? selectedDesignerId.value : undefined
           })