diff --git a/backend/ai_services/services.py b/backend/ai_services/services.py
index 3f8053a..3e1ab81 100644
--- a/backend/ai_services/services.py
+++ b/backend/ai_services/services.py
@@ -297,15 +297,35 @@ class AliyunTingwuService:
         # 调用大模型生成总结 (如果 summary_data 或 auto_chapters_data 存在)
         if task.summary_data or task.auto_chapters_data:
             try:
+                # 设置占位状态
+                task.summary = "AI总结生成当中..."
+                task.save(update_fields=['summary'])
+
+                # 异步执行总结
+                import threading
                 from .bailian_service import BailianService
-                bailian_service = BailianService()
-                bailian_service.summarize_task(task)
+                
+                def async_summarize_in_service(task_id):
+                    try:
+                        # 重新获取 task 以避免线程安全问题
+                        from .models import TranscriptionTask
+                        t = TranscriptionTask.objects.get(id=task_id)
+                        bailian_service = BailianService()
+                        bailian_service.summarize_task(t)
+                    except Exception as e:
+                        logger.error(f"Async summary generation failed in service: {e}")
+
+                threading.Thread(target=async_summarize_in_service, args=(task.id,)).start()
+                logger.info(f"Triggered async summary generation for task {task.id}")
+
             except Exception as e:
                 logger.error(f"Failed to trigger AI summarization: {e}")
 
         # 4. 自动触发 AI 评估 (如果任务首次成功且有启用的模板)
         if previous_status != 'SUCCEEDED' and task.status == 'SUCCEEDED' and task.transcription:
-            self.trigger_ai_evaluations(task)
+            # 同样改为异步触发
+            import threading
+            threading.Thread(target=self.trigger_ai_evaluations, args=(task,)).start()
 
     def trigger_ai_evaluations(self, task):
         """
diff --git a/backend/ai_services/views.py b/backend/ai_services/views.py
index 9218359..7492b57 100644
--- a/backend/ai_services/views.py
+++ b/backend/ai_services/views.py
@@ -284,6 +284,7 @@ class TranscriptionTaskViewSet(viewsets.ModelViewSet):
             
             # 如果任务成功但 AI 总结仍为空 (可能之前解析没触发，或者大模型调用失败)
             # 再次尝试强制触发 summarize_task (如果原始数据存在)
+            # 注意：service.parse_and_update_task 内部已经尝试异步触发，这里作为补救措施
             if task.status == TranscriptionTask.Status.SUCCEEDED and not task.summary:
                 if task.summary_data or task.auto_chapters_data:
                      try: