diff --git a/routes/chat.py b/routes/chat.py
index b97bd58..5a540ed 100644
--- a/routes/chat.py
+++ b/routes/chat.py
@@ -152,7 +152,8 @@ async def enhanced_generate_stream_response(
                             for tool_call_chunk in msg.tool_call_chunks:
                                 if tool_call_chunk["name"]:
                                     new_content = f"[{message_tag}] {tool_call_chunk['name']}\n"
-                                new_content += tool_call_chunk['args']
+                                if tool_call_chunk['args']:
+                                    new_content += tool_call_chunk['args']
                         
                         # 处理文本内容
                         elif msg.content:
@@ -162,7 +163,8 @@ async def enhanced_generate_stream_response(
                             if meta_message_tag != message_tag:
                                 message_tag = meta_message_tag
                                 new_content = f"[{meta_message_tag}]\n"
-                            new_content += msg.text
+                            if msg.text:
+                                new_content += msg.text
                         
                     # 处理工具响应
                     elif isinstance(msg, ToolMessage) and tool_response and msg.content: