diff --git a/models/response/product.go b/models/response/product.go
index 637c47b..26c15c2 100644
--- a/models/response/product.go
+++ b/models/response/product.go
@@ -229,6 +229,7 @@ type ProductFullInfoResponse struct {
 	Status             int8                     `json:"status"`                // 状态
 	CreatedAt          int64                    `json:"created_at"`            // 创建时间
 	UpdatedAt          int64                    `json:"updated_at"`            // 更新时间
+	TotalStock         int64                    `json:"total_stock"`           // 总库存数量
 	Inventories        []ProductInventoryDetail `json:"inventories"`           // 库存详情列表
 	ShopList           []ShopInfo               `json:"shop_list"`             // 店铺信息列表
 }
diff --git a/service/product.go b/service/product.go
index e62260c..012ebac 100644
--- a/service/product.go
+++ b/service/product.go
@@ -495,6 +495,13 @@ func (s *ProductService) GetProductFullInfo(req systemReq.GetProductFullInfoRequ
 
 	fmt.Printf("【断点8】库存信息查询完成 - 数量: %d\n", len(inventories))
 
+	totalStock := int64(0)
+	for _, inv := range inventories {
+		totalStock += inv.Quantity
+	}
+
+	fmt.Printf("【断点9】计算总库存: %d\n", totalStock)
+
 	outTaskInfoMap, err := s.getProductOutTaskInfo(databaseConn, []int64{req.ProductID})
 	if err != nil {
 		utils.ErrorLog(constant.LoggerChannelWork, map[string]interface{}{
@@ -508,7 +515,7 @@ func (s *ProductService) GetProductFullInfo(req systemReq.GetProductFullInfoRequ
 		shopList = outTaskInfo.ShopList
 	}
 
-	fmt.Printf("【断点9】店铺信息查询完成 - 数量: %d\n", len(shopList))
+	fmt.Printf("【断点10】店铺信息查询完成 - 数量: %d\n", len(shopList))
 
 	response := &systemRes.ProductFullInfoResponse{
 		ID:                 product.ID,
@@ -526,11 +533,12 @@ func (s *ProductService) GetProductFullInfo(req systemReq.GetProductFullInfoRequ
 		Status:             product.Status,
 		CreatedAt:          product.CreatedAt,
 		UpdatedAt:          product.UpdatedAt,
+		TotalStock:         totalStock,
 		Inventories:        inventories,
 		ShopList:           shopList,
 	}
 
-	fmt.Printf("【断点10】商品完整信息查询成功,准备返回\n")
+	fmt.Printf("【断点11】商品完整信息查询成功,准备返回\n")
 
 	utils.InfoLog(constant.LoggerChannelWork, map[string]interface{}{
 		"action":          "商品完整信息查询成功",
@@ -538,6 +546,7 @@ func (s *ProductService) GetProductFullInfo(req systemReq.GetProductFullInfoRequ
 		"user_id":         req.UserID,
 		"product_name":    product.Name,
 		"barcode":         product.Barcode,
+		"total_stock":     totalStock,
 		"inventory_count": len(inventories),
 		"shop_count":      len(shopList),
 		"success":         true,