diff --git a/BBWY.Server.Business/PurchaseOrder/PurchaseOrderBusiness.cs b/BBWY.Server.Business/PurchaseOrder/PurchaseOrderBusiness.cs
index 4dd8fee2..c3cadae3 100644
--- a/BBWY.Server.Business/PurchaseOrder/PurchaseOrderBusiness.cs
+++ b/BBWY.Server.Business/PurchaseOrder/PurchaseOrderBusiness.cs
@@ -141,6 +141,7 @@ namespace BBWY.Server.Business
 
             var deletePurchaseOrder = fsql.Delete<PurchaseOrder>().Where(po => oldPourchaseIdList.Contains(po.Id));
             var deleteOrderCostDetail = fsql.Delete<OrderCostDetail>().Where(ocd => ocd.OrderId == dbOrder.Id);
+            var isRepurchase = fsql.Select<OrderCost>(dbOrder.Id).Any();
 
             #region 合并重复的采购sku
             var repeatPurchaseSkuGroups = createOnlinePurchaseOrderRequest.CargoParamList.GroupBy(p => p.SkuId).ToList();
@@ -186,6 +187,7 @@ namespace BBWY.Server.Business
             List<OrderCostDetail> insertOrderCostDetails = new List<OrderCostDetail>();
 
             IInsert<OrderCost> insertOrderCost = null;
+            IUpdate<OrderCost> updateOrderCost = null;
             IInsert<OrderDropShipping> insertOrderDropShipping = null;
             foreach (var orderSku in orderSkus)
             {
@@ -282,7 +284,14 @@ namespace BBWY.Server.Business
                                orderCost.PurchaseAmount -
                                orderCost.DeliveryExpressFreight -
                                orderCost.PlatformCommissionAmount;
-            insertOrderCost = fsql.Insert(orderCost);
+            if (!isRepurchase)
+            {
+                insertOrderCost = fsql.Insert(orderCost);
+            }
+            else
+            {
+                updateOrderCost = fsql.Update<OrderCost>().SetSource(orderCost).IgnoreColumns(a => new { a.CreateTime });
+            }
             #endregion
 
             #region 代发信息
@@ -314,6 +323,7 @@ namespace BBWY.Server.Business
                 fsql.Insert(insertPurchaseOrders).ExecuteAffrows();
                 fsql.Insert(insertPurchaseOrderDetails).ExecuteAffrows();
                 fsql.Insert(insertOrderCostDetails).ExecuteAffrows();
+                updateOrderCost?.ExecuteAffrows();
                 insertOrderCost?.ExecuteAffrows();
                 insertOrderDropShipping?.ExecuteAffrows();
                 fsql.Update<Order>(createOnlinePurchaseOrderRequest.OrderId).SetIf(dbOrder.OrderState == Enums.OrderState.等待采购, o => o.OrderState, Model.Enums.OrderState.待出库)