diff --git a/backend/src/main/java/com/designhub/service/TaskItemService.java b/backend/src/main/java/com/designhub/service/TaskItemService.java
index 4638e3e..56e0b73 100644
--- a/backend/src/main/java/com/designhub/service/TaskItemService.java
+++ b/backend/src/main/java/com/designhub/service/TaskItemService.java
@@ -1499,15 +1499,35 @@ public class TaskItemService {
             }
         }
         
-        // 🔥 更新主任务状态为已审核通过
+        // 🔥 更新主任务状态（避免出现“子任务进行中但主任务仍为pending”的状态错乱）
         mainTask.setApprovalStatus("approved");
-        mainTask.setStatus("pending");
+        if (assignedReceiverId != null) {
+            // 子任务已指定处理人并进入进行中：主任务同步为进行中
+            mainTask.setStatus("in_progress");
+            mainTask.setReceiverId(assignedReceiverId);
+            com.designhub.entity.User receiver = userService.getUserById(assignedReceiverId);
+            if (receiver != null) {
+                mainTask.setReceiverDeptId(receiver.getDeptId());
+            }
+            LocalDateTime now = LocalDateTime.now();
+            if (mainTask.getStartTime() == null) {
+                mainTask.setStartTime(now);
+            }
+            if (mainTask.getActualStartTime() == null) {
+                mainTask.setActualStartTime(now);
+            }
+        } else {
+            // 未指定处理人，继续发布在任务大厅待接单
+            mainTask.setStatus("pending");
+            mainTask.setReceiverId(null);
+            mainTask.setReceiverDeptId(null);
+        }
         mainTask.setReceivingApprovalTime(LocalDateTime.now());
         mainTask.setCurrentApproverId(null);
         mainTask.setCurrentApproverRole(null);
         mainTask.setUpdateTime(LocalDateTime.now());
         taskMapper.updateById(mainTask);
-        log.info("主任务 {} 接单部门审核通过，状态更新为 approved/pending", taskId);
+        log.info("主任务 {} 接单部门审核通过，状态更新为 {}/{}", taskId, mainTask.getApprovalStatus(), mainTask.getStatus());
     }
 
     /**