diff --git a/modules/items/modelitems.go b/modules/items/modelitems.go
index 87ee5369e..415518e9a 100644
--- a/modules/items/modelitems.go
+++ b/modules/items/modelitems.go
@@ -686,7 +686,7 @@ func (this *ModelItemsComp) useitem(session comm.IUserSession, gid string, amoun
 				return
 			}
 
-			if itemcf.SynthetizeNum*int32(amount) > int32(item.Amount) { //碎片数量不够
+			if amount > int32(item.Amount) { //碎片数量不够
 				errdata = &pb.ErrorData{
 					Code:    pb.ErrorCode_ItemsNoEnough,
 					Title:   pb.ErrorCode_ItemsNoEnough.ToString(),