diff --git a/mempalace/mcp_server.py b/mempalace/mcp_server.py
index 30a0bea..715023d 100644
--- a/mempalace/mcp_server.py
+++ b/mempalace/mcp_server.py
@@ -2068,7 +2068,11 @@ def handle_request(request):
             return {
                 "jsonrpc": "2.0",
                 "id": req_id,
-                "result": {"content": [{"type": "text", "text": json.dumps(result, indent=2)}]},
+                "result": {
+                    "content": [
+                        {"type": "text", "text": json.dumps(result, indent=2, ensure_ascii=False)}
+                    ]
+                },
             }
         except Exception:
             logger.exception(f"Tool error in {tool_name}")
@@ -2129,7 +2133,7 @@ def main():
             request = json.loads(line)
             response = handle_request(request)
             if response is not None:
-                sys.stdout.write(json.dumps(response) + "\n")
+                sys.stdout.write(json.dumps(response, ensure_ascii=False) + "\n")
                 sys.stdout.flush()
         except KeyboardInterrupt:
             break