diff --git a/BBWYB.Server.Business/PurchaseOrder/PurchaseOrderBusiness.cs b/BBWYB.Server.Business/PurchaseOrder/PurchaseOrderBusiness.cs
index 765a158..c5a37c3 100644
--- a/BBWYB.Server.Business/PurchaseOrder/PurchaseOrderBusiness.cs
+++ b/BBWYB.Server.Business/PurchaseOrder/PurchaseOrderBusiness.cs
@@ -42,6 +42,29 @@ namespace BBWYB.Server.Business
             this.expressCompanyNameConverter = expressCompanyNameConverter;
         }
 
+        /// <summary>
+        /// 合并相同的采购Sku
+        /// </summary>
+        /// <param name="cargoParamList"></param>
+        /// <returns></returns>
+        private IList<PP_OrderProductParamRequest> CombineRepeatPurchaseSku(IList<CargoParamRequest> cargoParamList)
+        {
+            IList<PP_OrderProductParamRequest> orderProductParamList = new List<PP_OrderProductParamRequest>();
+            var samePurchaseSkuGroups = cargoParamList.GroupBy(p => p.SkuId).ToList();
+            foreach (var samePurchaseSkuGroup in samePurchaseSkuGroups)
+            {
+                var first = samePurchaseSkuGroup.First();
+                orderProductParamList.Add(new PP_OrderProductParamRequest()
+                {
+                    ProductId = first.ProductId,
+                    SkuId = first.SkuId,
+                    SpecId = first.SpecId,
+                    Quantity = samePurchaseSkuGroup.Sum(p => p.Quantity)
+                });
+            }
+            return orderProductParamList;
+        }
+
         public PreviewOrderResponse PreviewPurchaseOrder(PreviewOrderRequest request)
         {
             nLogManager.Default().Info($"PreviewPurchaseOrder {JsonConvert.SerializeObject(request)}");
@@ -67,6 +90,7 @@ namespace BBWYB.Server.Business
                 if (purchaseAccount == null)
                     throw new BusinessException($"缺少{cargoParamGroup.PurchasePlatform}采购平台账号,请在店铺配置中设置");
 
+                var orderProductParamList = CombineRepeatPurchaseSku(cargoParamGroup.CargoParamList);
                 try
                 {
                     var response = ppPlatformClientFactory.GetClient((AdapterEnums.PlatformType)cargoParamGroup.PurchasePlatform)
@@ -88,13 +112,7 @@ namespace BBWYB.Server.Business
                                                               },
                                                               Platform = (AdapterEnums.PlatformType)cargoParamGroup.PurchasePlatform,
                                                               PurchaseMode = (AdapterEnums.PurchaseMode)request.PurchaseOrderMode,
-                                                              OrderProductParamList = cargoParamGroup.CargoParamList.Select(p => new PP_OrderProductParamRequest()
-                                                              {
-                                                                  ProductId = p.ProductId,
-                                                                  Quantity = p.Quantity,
-                                                                  SkuId = p.SkuId,
-                                                                  SpecId = p.SpecId
-                                                              }).ToList()
+                                                              OrderProductParamList = orderProductParamList
                                                           });
 
                     if (cargoParamGroup.PurchasePlatform == Enums.Platform.阿里巴巴)
@@ -165,6 +183,8 @@ namespace BBWYB.Server.Business
                 var client = ppPlatformClientFactory.GetClient((AdapterEnums.PlatformType)cargoParamGroup.PurchasePlatform);
                 var extJson = extJArray.FirstOrDefault(j => j.Value<string>("PurchaserId") == cargoParamGroup.PurchaserId);
 
+                var orderProductParamList = CombineRepeatPurchaseSku(cargoParamGroup.CargoParamList);
+
                 var createOrderResponse = client.CreateOrder(new PP_CreateOrderRequest()
                 {
                     AppKey = purchaseAccount.AppKey,
@@ -185,13 +205,7 @@ namespace BBWYB.Server.Business
                     PurchaseMode = (AdapterEnums.PurchaseMode)request.PurchaseOrderMode,
                     Extensions = extJson.Value<string>("OrderTradeTypeCode"),
                     Remark = request.Remark,
-                    OrderProductParamList = cargoParamGroup.CargoParamList.Select(p => new PP_OrderProductParamRequest()
-                    {
-                        ProductId = p.ProductId,
-                        Quantity = p.Quantity,
-                        SkuId = p.SkuId,
-                        SpecId = p.SpecId
-                    }).ToList()
+                    OrderProductParamList = orderProductParamList
                 });
 
                 var purchaseOrderSimpleInfo = client.QueryOrderDetail(new PP_QueryOrderDetailRequest()
@@ -203,7 +217,6 @@ namespace BBWYB.Server.Business
                 });
 
                 totalPurchaseAmount += purchaseOrderSimpleInfo.TotalAmount;
-                //purchaseOrderSimpleInfoList.Add(purchaseOrderSimpleInfo);
 
                 var belongSkuGroups = cargoParamGroup.CargoParamList.GroupBy(p => p.BelongSkuId);
                 foreach (var belongSkuGroup in belongSkuGroups)
@@ -211,8 +224,16 @@ namespace BBWYB.Server.Business
                     var belongSkuId = belongSkuGroup.Key;
                     var currentOrderSkuProductAmount = 0M; //采购成本
                     var currentOrderSkuCargoParamList = cargoParamGroup.CargoParamList.Where(p => p.BelongSkuId == belongSkuId); //找当前skuId的采购skuId
-                    currentOrderSkuProductAmount = purchaseOrderSimpleInfo.ItemList.Where(p => currentOrderSkuCargoParamList.Any(p1 => p1.SkuId == p.SkuId))
-                                                                                   ?.Sum(p => p.ProductAmount) ?? 0M;
+
+                    foreach (var currentOrderSkuCargo in currentOrderSkuCargoParamList)
+                    {
+                        var purchaseSkuProductAmount = purchaseOrderSimpleInfo.ItemList.Where(p => p.SkuId == currentOrderSkuCargo.SkuId)
+                                                                                       .Sum(p => p.ProductAmount);
+                        var purchaseSkuTotalQuantity = purchaseOrderSimpleInfo.ItemList.Where(p => p.SkuId == currentOrderSkuCargo.SkuId)
+                                                                                       .Sum(p => p.Quantity);
+                        currentOrderSkuProductAmount += purchaseSkuProductAmount * (1.0M * currentOrderSkuCargo.Quantity / purchaseSkuTotalQuantity);
+                    }
+
                     var currentOrderSkuFreightAmount = purchaseOrderSimpleInfo.FreightAmount / belongSkuGroups.Count(); //采购运费(按sku数均分)
 
                     #region 成本明细
@@ -238,24 +259,24 @@ namespace BBWYB.Server.Business
                     };
                     insertOrderCostDetails.Add(orderCostDetail);
                     #endregion
-
-                    #region 订单采购信息
-                    var orderPurchaserInfo = new OrderPurchaseInfo()
-                    {
-                        Id = idGenerator.NewLong(),
-                        OrderId = request.OrderId,
-                        CreateTime = DateTime.Now,
-                        PurchaseAccountId = purchaseAccount.Id,
-                        PurchaseAccountName = purchaseAccount.AccountName,
-                        PurchaseMethod = Enums.PurchaseMethod.线上采购,
-                        PurchaseOrderId = createOrderResponse.OrderId,
-                        PurchasePlatform = cargoParamGroup.PurchasePlatform,
-                        PurchaserName = cargoParamGroup.PurchaserName,
-                        ShopId = request.ShopId
-                    };
-                    insertOrderPurchaseInfos.Add(orderPurchaserInfo);
-                    #endregion
                 }
+
+                #region 订单采购信息
+                var orderPurchaserInfo = new OrderPurchaseInfo()
+                {
+                    Id = idGenerator.NewLong(),
+                    OrderId = request.OrderId,
+                    CreateTime = DateTime.Now,
+                    PurchaseAccountId = purchaseAccount.Id,
+                    PurchaseAccountName = purchaseAccount.AccountName,
+                    PurchaseMethod = Enums.PurchaseMethod.线上采购,
+                    PurchaseOrderId = createOrderResponse.OrderId,
+                    PurchasePlatform = cargoParamGroup.PurchasePlatform,
+                    PurchaserName = cargoParamGroup.PurchaserName,
+                    ShopId = request.ShopId
+                };
+                insertOrderPurchaseInfos.Add(orderPurchaserInfo);
+                #endregion
             }
 
             #region 订单成本