diff --git a/trading_system/binance_client.py b/trading_system/binance_client.py
index c3aa960..941eba7 100644
--- a/trading_system/binance_client.py
+++ b/trading_system/binance_client.py
@@ -1600,17 +1600,37 @@ class BinanceClient:
             return False
 
         try:
-            await self.client.futures_cancel_order(symbol=symbol, orderId=order_id)
+            # 使用更大的 recvWindow，降低在网络抖动时触发 -1021 的概率
+            await self.client.futures_cancel_order(symbol=symbol, orderId=order_id, recvWindow=20000)
             logger.info(f"取消订单成功: {symbol} {order_id}")
             return True
         except BinanceAPIException as e:
-            # -2011 Unknown order sent：订单可能已成交/已撤销/已过期，这是典型幂等场景
-            # 取消操作应视为“已达成目标”（不再继续报错刷屏）
             code = getattr(e, "code", None)
             msg = str(e)
+            # -2011 Unknown order sent：订单可能已成交/已撤销/已过期，这是典型幂等场景
             if code == -2011 or "code=-2011" in msg or "Unknown order sent" in msg:
                 logger.info(f"取消订单幂等成功（订单可能已不存在）: {symbol} {order_id} | {e}")
                 return True
+            # -1021 时间戳不在 recvWindow 内：尝试同步服务器时间并重试一次
+            if code == -1021 or "code=-1021" in msg or "Timestamp for this request is outside of the recvWindow" in msg:
+                logger.warning(f"取消订单触发 -1021 时间戳错误，尝试同步服务器时间并重试一次: {symbol} {order_id} | {e}")
+                try:
+                    # 触发一次与服务器对时，让 python-binance 更新内部时间偏差
+                    await self.client.get_server_time()
+                except Exception as sync_e:
+                    logger.debug(f"同步币安服务器时间失败（可忽略，继续重试取消）: {sync_e}")
+                try:
+                    await self.client.futures_cancel_order(symbol=symbol, orderId=order_id, recvWindow=20000)
+                    logger.info(f"取消订单重试成功: {symbol} {order_id}")
+                    return True
+                except BinanceAPIException as e2:
+                    code2 = getattr(e2, "code", None)
+                    msg2 = str(e2)
+                    if code2 == -2011 or "code=-2011" in msg2 or "Unknown order sent" in msg2:
+                        logger.info(f"取消订单幂等成功（重试后订单可能已不存在）: {symbol} {order_id} | {e2}")
+                        return True
+                    logger.error(f"取消订单失败(重试后仍错误): {symbol} {order_id} | {e2}")
+                    return False
             logger.error(f"取消订单失败: {e}")
             return False
 
@@ -2010,4 +2030,4 @@ class BinanceClient:
             cache_age = time.time() - cached.get('timestamp', 0)
             if cache_age < self._price_cache_ttl:
                 return cached.get('price')
-        return None
\ No newline at end of file
+        return None