diff --git a/Binance.TradeRobot.Business/Business/TradeBusiness/D21TradeBusiness.cs b/Binance.TradeRobot.Business/Business/TradeBusiness/D21TradeBusiness.cs
index d01380e..3953ae1 100644
--- a/Binance.TradeRobot.Business/Business/TradeBusiness/D21TradeBusiness.cs
+++ b/Binance.TradeRobot.Business/Business/TradeBusiness/D21TradeBusiness.cs
@@ -141,11 +141,13 @@ namespace Binance.TradeRobot.Business
                 #region 计算下单数量
                 step = "计算下单数量";
                 var diffAmount = 0M;  //下单缺口金额
+                var accountLoanAmount = robot.RobotAccount.LoanAmount;  //账户借币金额
                 var previewTradeAmount = d21Robot.D21Policy.Position; //预估交易额
+
                 if (balance < previewTradeAmount)
                 {
-                    #region 借币
-                    step = "验证借币比例";
+                    #region 验证借币比例
+                    step = "验证借币";
                     diffAmount = previewTradeAmount - balance;
                     var diffRatio = diffAmount / balance * 100;     //借币比例
 
@@ -203,7 +205,9 @@ namespace Binance.TradeRobot.Business
                     step = "借币";
                     try
                     {
-
+                        var loanResponse = apiClient.IsolatedMarginLoan(robot.Symbol, diffAmount);
+                        diffAmount = loanResponse.CurrentLoanAmount;
+                        accountLoanAmount = loanResponse.AccountLoanAmount;
                     }
                     catch (Exception borrowex)
                     {