diff --git a/BBWYB.Server.API/Controllers/PurchaseSchemeController.cs b/BBWYB.Server.API/Controllers/PurchaseSchemeController.cs
index 673114c..1444c88 100644
--- a/BBWYB.Server.API/Controllers/PurchaseSchemeController.cs
+++ b/BBWYB.Server.API/Controllers/PurchaseSchemeController.cs
@@ -101,5 +101,15 @@ namespace BBWYB.Server.API.Controllers
         {
             return purchaseSchemeBusiness.RefreshPurchaseScheme(request);
         }
+
+        /// <summary>
+        /// 修改采购配件比例
+        /// </summary>
+        /// <param name="request"></param>
+        [HttpPost]
+        public void EditPurchaseRatio([FromBody]EditPurchaseRatioRequest request)
+        {
+            purchaseSchemeBusiness.EditPurchaseRatio(request);
+        }
     }
 }
diff --git a/BBWYB.Server.Business/PurchaseScheme/PurchaseSchemeBusiness.cs b/BBWYB.Server.Business/PurchaseScheme/PurchaseSchemeBusiness.cs
index c0a5923..68ec95e 100644
--- a/BBWYB.Server.Business/PurchaseScheme/PurchaseSchemeBusiness.cs
+++ b/BBWYB.Server.Business/PurchaseScheme/PurchaseSchemeBusiness.cs
@@ -384,6 +384,15 @@ namespace BBWYB.Server.Business
             return list;
         }
 
-
+        public void EditPurchaseRatio(EditPurchaseRatioRequest request)
+        {
+            if (request.Ratio < 1)
+                request.Ratio = 1;
+            fsql.Update<PurchaseSchemeProductSku>().Set(pss => pss.PurchaseRatio, request.Ratio)
+                                                   .Where(pss => pss.SkuPurchaseSchemeId == request.SchemeId &&
+                                                                 pss.SkuId == request.SkuId &&
+                                                                 pss.PurchaseSkuId == request.PurchaseSkuId)
+                                                   .ExecuteAffrows();
+        }
     }
 }
diff --git a/BBWYB.Server.Model/Dto/Request/PurchaseScheme/EditPurchaseRatioRequest.cs b/BBWYB.Server.Model/Dto/Request/PurchaseScheme/EditPurchaseRatioRequest.cs
index 2e09843..0eebc71 100644
--- a/BBWYB.Server.Model/Dto/Request/PurchaseScheme/EditPurchaseRatioRequest.cs
+++ b/BBWYB.Server.Model/Dto/Request/PurchaseScheme/EditPurchaseRatioRequest.cs
@@ -4,8 +4,10 @@
     {
         public long SchemeId { get; set; }
 
-        public string SkuId { get; set; } 
+        public string SkuId { get; set; }
 
         public string PurchaseSkuId { get; set; }
+
+        public int Ratio { get; set; }
     }
 }