diff --git a/business/jxstore/act/act.go b/business/jxstore/act/act.go
index 797a2febb..d6d6bca33 100644
--- a/business/jxstore/act/act.go
+++ b/business/jxstore/act/act.go
@@ -1572,7 +1572,13 @@ func ChangeJxPriceByDiscountAct(ctx *jxcontext.Context) {
 					storeSku.JxPrice = storeSku.JxPrice + int(actualPrice)
 				} else if actStoreSku.TrendType == model.TrendTypeDown {
 					storeSku.JxPrice = storeSku.JxPrice - int(actualPrice)
-					storeSku.Stock = checkPriceDefendOrderByPrice(db, storeSku.StoreID, storeSku.SkuID, storeSku.Stock, storeSku.JxPrice)
+					stock := checkPriceDefendOrderByPrice(db, storeSku.StoreID, storeSku.SkuID, storeSku.Stock, storeSku.JxPrice)
+					if stock != -1 {
+						storeSku.Stock = stock
+						if _, err = dao.UpdateEntity(db, storeSku, "Stock"); err != nil {
+							dao.Rollback(db)
+						}
+					}
 				}
 				if storeSku.JxPrice >= int(actStoreSku.OriginalPrice) {
 					storeSku.JxPrice = int(actStoreSku.OriginalPrice)
@@ -1586,7 +1592,7 @@ func ChangeJxPriceByDiscountAct(ctx *jxcontext.Context) {
 				if storeSku.JxPrice <= int(minJxPrice) {
 					storeSku.JxPrice = int(minJxPrice)
 				}
-				if _, err = dao.UpdateEntity(db, storeSku, "JxPrice", "Stock"); err != nil {
+				if _, err = dao.UpdateEntity(db, storeSku, "JxPrice"); err != nil {
 					dao.Rollback(db)
 				}
 				//C >= 2N  涨价趋势，最高涨价到无折扣
@@ -1635,7 +1641,7 @@ func ChangeJxPriceByDiscountAct(ctx *jxcontext.Context) {
 func checkPriceDefendOrderByPrice(db *dao.DaoDB, storeID, skuID, stock, jxPrice int) (realStock int) {
 	priceDefends, _ := dao.GetPriceDefendOrder(db, []int{storeID}, []int{skuID}, []int{jxutils.GetDefendPriceIssue()}, 0, 0, 0)
 	if len(priceDefends) == 0 {
-		return
+		return -1
 	}
 	for _, v := range priceDefends {
 		//如果刚好守的价和降的价一样，再判断库存够不够