diff --git a/Binance.TradeRobot.Business/Business/TradeBusiness/Spot/D21TradeBusiness.cs b/Binance.TradeRobot.Business/Business/TradeBusiness/Spot/D21TradeBusiness.cs
index f9aa652..9a9f044 100644
--- a/Binance.TradeRobot.Business/Business/TradeBusiness/Spot/D21TradeBusiness.cs
+++ b/Binance.TradeRobot.Business/Business/TradeBusiness/Spot/D21TradeBusiness.cs
@@ -144,8 +144,11 @@ namespace Binance.TradeRobot.Business
                             CreateTime = DateTime.Now,
                             Content = $"触发策略中交易所最大借币比例限制,交易所最大借币比例{d21Robot.D21Policy.MaxExchangeLoanRatio}%,当前借币比例{diffRatio}%,下单仓位:{previewTradeAmount},账户余额:{balance},按交易所最大借币比例借币"
                         });
-                        diffAmount = previewTradeAmount * (d21Robot.D21Policy.MaxExchangeLoanRatio / 100M);
+                        //diffAmount = previewTradeAmount * (d21Robot.D21Policy.MaxExchangeLoanRatio / 100M);
+                        
+                        diffAmount = balance * d21Robot.D21Policy.MaxExchangeLoanRatio;
                         //previewTradeAmount = balance + diffAmount; //在策略允许的借币比例范围内的最大下单金额
+
                     }
                     #endregion