diff --git a/business/views.py b/business/views.py
index a902c70..1ec060c 100644
--- a/business/views.py
+++ b/business/views.py
@@ -2931,12 +2931,19 @@ class BulletinDetail(APIView):
             user_agents_page = paginator.page(paginator.num_pages)
         data = []
         for info in user_agents_page.object_list:
+            # 解析 file 字段：有文件返回数组，无文件返回空字符串
+            try:
+                file_list = json.loads(info.file) if info.file else []
+            except (json.JSONDecodeError, TypeError):
+                file_list = []
+            # 空列表返回空字符串
+            file_result = file_list if file_list else ""
             data.append({
                 "id": info.id,
                 "title": info.title,
                 "content": info.content,
                 "times": info.times,
-                "file": info.file,
+                "file": file_result,
                 "username": info.username,
                 "state": info.state,
             })
@@ -5054,12 +5061,19 @@ class SystemList(APIView):
             user_agents_page = paginator.page(paginator.num_pages)
         data = []
         for info in user_agents_page.object_list:
+            # 解析 file 字段：有文件返回数组，无文件返回空字符串
+            try:
+                file_list = json.loads(info.file) if info.file else []
+            except (json.JSONDecodeError, TypeError):
+                file_list = []
+            # 空列表返回空字符串
+            file_result = file_list if file_list else ""
             data.append({
                 "id": info.id,
                 "title": info.title,
                 "content": info.content,
                 "times": info.times,
-                "file": info.file,
+                "file": file_result,
                 "username": info.username,
                 "state": info.state,
             })