diff --git a/business/partner/purchase/tao_vegetable/store_sku2.go b/business/partner/purchase/tao_vegetable/store_sku2.go
index f1ac07499..c1f063ff8 100644
--- a/business/partner/purchase/tao_vegetable/store_sku2.go
+++ b/business/partner/purchase/tao_vegetable/store_sku2.go
@@ -691,7 +691,7 @@ func (p *PurchaseHandler) GetSensitiveWordRegexp() *regexp.Regexp {
 
 // SelectStoreSkuListByFoodList 淘宝批量返回
 func SelectStoreSkuListByFoodList(storeSkuList interface{}, foodList []tao_vegetable.VegetableResultList, storeID int, vendorName, syncType string) (selectedStoreSkuList []*partner.StoreSkuInfoWithErr, successMap map[string]string) {
-	foodMap := make(map[string]string)
+	foodMap := make(map[string]string, len(foodList))
 	if len(foodList) > 0 {
 		for _, v := range foodList {
 			if v.ProductID == "" {