diff --git a/server/corpus-agent/server.py b/server/corpus-agent/server.py
index fe27dc9..912c8be 100644
--- a/server/corpus-agent/server.py
+++ b/server/corpus-agent/server.py
@@ -592,8 +592,8 @@ async def chat_with_agent(req: ChatRequest, token: str = Query(...)):
                                     if event_type == SSE_TYPE_PERSONA:
                                         yield f"data: {json.dumps({'type': SSE_TYPE_PERSONA, 'persona': data.get('persona', ''), 'fromDB': data.get('fromDB', False)})}\n\n"
                                     
-                                    # 转发 token 事件
-                                    elif event_type == SSE_TYPE_TOKEN:
+                                    # 转发 token 事件（兼容Portal原始格式：{"token":"铸"} 无type字段）
+                                    if event_type == SSE_TYPE_TOKEN or (not event_type and "token" in data):
                                         token_text = data.get("token", "")
                                         full_response += token_text
                                         yield f"data: {json.dumps({'type': SSE_TYPE_TOKEN, 'token': token_text})}\n\n"