diff --git a/admin/dashboard/blueprints/message_push.py b/admin/dashboard/blueprints/message_push.py
index 91101db..3673c19 100644
--- a/admin/dashboard/blueprints/message_push.py
+++ b/admin/dashboard/blueprints/message_push.py
@@ -98,34 +98,15 @@ def api_tasks_list():
         db = current_app.dashboard_server.task_db
         tasks, total = db.get_tasks_list(status, start_time, end_time, page, limit)
 
-        # 处理任务数据，确保所有字段都可以JSON序列化
-        serialized_tasks = []
+        # 处理recurring_time序列化问题
         for task in tasks:
-            task_dict = dict(task)
-            # 处理timedelta对象
-            if 'next_schedule_time' in task_dict and task_dict['next_schedule_time']:
-                task_dict['next_schedule_time'] = task_dict['next_schedule_time'].isoformat()
-            if 'last_run_time' in task_dict and task_dict['last_run_time']:
-                task_dict['last_run_time'] = task_dict['last_run_time'].isoformat()
-            if 'recurring_end' in task_dict and task_dict['recurring_end']:
-                task_dict['recurring_end'] = task_dict['recurring_end'].isoformat()
-            # 处理JSON字符串
-            if 'content_link' in task_dict and task_dict['content_link']:
-                try:
-                    task_dict['content_link'] = json.loads(task_dict['content_link'])
-                except:
-                    task_dict['content_link'] = None
-            if 'weekly_days' in task_dict and task_dict['weekly_days']:
-                try:
-                    task_dict['weekly_days'] = json.loads(task_dict['weekly_days'])
-                except:
-                    task_dict['weekly_days'] = None
-            serialized_tasks.append(task_dict)
+            if hasattr(task, 'recurring_time') and task.recurring_time:
+                task.recurring_time = task.recurring_time.isoformat()
 
         return jsonify({
             "success": True,
             "data": {
-                "tasks": serialized_tasks,
+                "tasks": tasks,
                 "total": total,
                 "page": page,
                 "limit": limit
@@ -133,10 +114,7 @@ def api_tasks_list():
         })
     except Exception as e:
         logger.error(f"获取任务列表失败: {str(e)}")
-        return jsonify({
-            "success": False,
-            "message": f'获取任务列表失败: {str(e)}'
-        }), 500
+        return jsonify({"success": False, "error": str(e)}), 500
 
 
 @message_push_bp.route('/api/tasks', methods=['POST'])