diff --git a/trading_system/binance_client.py b/trading_system/binance_client.py
index 3df847d..c70a983 100644
--- a/trading_system/binance_client.py
+++ b/trading_system/binance_client.py
@@ -713,24 +713,54 @@ class BinanceClient:
         Returns:
             持仓列表
         """
-        try:
-            positions = await self.client.futures_position_information()
-            open_positions = [
-                {
-                    'symbol': pos['symbol'],
-                    'positionAmt': float(pos['positionAmt']),
-                    'entryPrice': float(pos['entryPrice']),
-                    'markPrice': float(pos.get('markPrice', 0)),
-                    'unRealizedProfit': float(pos['unRealizedProfit']),
-                    'leverage': int(pos['leverage'])
-                }
-                for pos in positions 
-                if float(pos['positionAmt']) != 0
-            ]
-            return open_positions
-        except BinanceAPIException as e:
-            logger.error(f"获取持仓信息失败: {e}")
-            return []
+        retries = 3
+        last_error = None
+        
+        for attempt in range(retries):
+            try:
+                # 增加 recvWindow 以避免 -1021 错误
+                positions = await self.client.futures_position_information(recvWindow=20000)
+                open_positions = [
+                    {
+                        'symbol': pos['symbol'],
+                        'positionAmt': float(pos['positionAmt']),
+                        'entryPrice': float(pos['entryPrice']),
+                        'markPrice': float(pos.get('markPrice', 0)),
+                        'unRealizedProfit': float(pos['unRealizedProfit']),
+                        'leverage': int(pos['leverage'])
+                    }
+                    for pos in positions 
+                    if float(pos['positionAmt']) != 0
+                ]
+                return open_positions
+            except (asyncio.TimeoutError, BinanceAPIException) as e:
+                last_error = e
+                # 如果是API异常，检查是否是网络相关或服务器错误
+                is_network_error = False
+                if isinstance(e, BinanceAPIException):
+                    # -1021: Timestamp for this request is outside of the recvWindow
+                    # 5xx: Server Error
+                    if e.code == -1021 or str(e.code).startswith('5'):
+                        is_network_error = True
+                else:
+                    # TimeoutError
+                    is_network_error = True
+                
+                if is_network_error:
+                    if attempt < retries - 1:
+                        logger.warning(f"获取持仓信息失败 (第 {attempt + 1}/{retries} 次): {e}，将在 1秒后重试...")
+                        await asyncio.sleep(1)
+                        continue
+                
+                logger.error(f"获取持仓信息失败: {e}")
+                return []
+            except Exception as e:
+                logger.error(f"获取持仓信息失败: {e}")
+                return []
+        
+        if last_error:
+            logger.error(f"获取持仓信息最终失败 (已重试 {retries} 次): {last_error}")
+        return []
 
     async def get_recent_trades(self, symbol: str, limit: int = 50) -> List[Dict]:
         """
@@ -1309,6 +1339,9 @@ class BinanceClient:
                     logger.info(f"{symbol} 使用 reduceOnly=true 平仓订单")
 
             async def _submit(params: Dict[str, Any]) -> Dict[str, Any]:
+                # 增加 recvWindow 以避免 -1021 错误
+                params['recvWindow'] = 20000
+                
                 if order_type == 'MARKET':
                     return await self.client.futures_create_order(**params)
                 if price is None:
diff --git a/trading_system/position_manager.py b/trading_system/position_manager.py
index 92e94cf..972ba5b 100644
--- a/trading_system/position_manager.py
+++ b/trading_system/position_manager.py
@@ -133,7 +133,7 @@ class PositionManager:
         last_status = None
         while time.time() < deadline:
             try:
-                info = await self.client.client.futures_get_order(symbol=symbol, orderId=order_id)
+                info = await self.client.client.futures_get_order(symbol=symbol, orderId=order_id, recvWindow=20000)
                 status = info.get("status")
                 last_status = status
                 if status == "FILLED":
@@ -913,7 +913,7 @@ class PositionManager:
                     
                     # 从币安获取订单详情，获取实际成交价格
                     try:
-                        order_info = await self.client.client.futures_get_order(symbol=symbol, orderId=order_id)
+                        order_info = await self.client.client.futures_get_order(symbol=symbol, orderId=order_id, recvWindow=20000)
                         if order_info:
                             # 优先使用平均成交价格（avgPrice），如果没有则使用价格字段
                             exit_price = float(order_info.get('avgPrice', 0)) or float(order_info.get('price', 0))
@@ -1160,7 +1160,7 @@ class PositionManager:
         try:
             if not getattr(self.client, "client", None):
                 return None
-            res = await self.client.client.futures_position_information(symbol=symbol)
+            res = await self.client.client.futures_position_information(symbol=symbol, recvWindow=20000)
             if not isinstance(res, list):
                 return None
             ps = (position_side or "").upper()
@@ -2082,7 +2082,8 @@ class PositionManager:
                                 orders = await self.client.client.futures_get_all_orders(
                                     symbol=symbol,
                                     startTime=start_time,
-                                    endTime=end_time
+                                    endTime=end_time,
+                                    recvWindow=20000
                                 )
                                 
                                 # 验证 orders 的类型