diff --git a/internal/application/product/dto/responses/product_responses.go b/internal/application/product/dto/responses/product_responses.go
index e72fa52..b524c10 100644
--- a/internal/application/product/dto/responses/product_responses.go
+++ b/internal/application/product/dto/responses/product_responses.go
@@ -10,6 +10,7 @@ type PackageItemResponse struct {
 	ProductName string  `json:"product_name" comment:"子产品名称"`
 	SortOrder   int     `json:"sort_order" comment:"排序"`
 	Price       float64 `json:"price" comment:"子产品价格"`
+	CostPrice   float64 `json:"cost_price" comment:"子产品成本价"`
 }
 
 // ProductInfoResponse 产品详情响应
diff --git a/internal/application/product/product_application_service.go b/internal/application/product/product_application_service.go
index e0be97b..e03b756 100644
--- a/internal/application/product/product_application_service.go
+++ b/internal/application/product/product_application_service.go
@@ -38,8 +38,8 @@ type ProductApplicationService interface {
 	ReorderPackageItems(ctx context.Context, packageID string, cmd *commands.ReorderPackageItemsCommand) error
 	UpdatePackageItems(ctx context.Context, packageID string, cmd *commands.UpdatePackageItemsCommand) error
 
-	// 可选子产品查询
-	GetAvailableProducts(ctx context.Context, query *queries.GetAvailableProductsQuery) (*responses.ProductListResponse, error)
+	// 可选子产品查询（管理员端，返回包含成本价的数据）
+	GetAvailableProducts(ctx context.Context, query *queries.GetAvailableProductsQuery) (*responses.ProductAdminListResponse, error)
 
 	// API配置管理
 	GetProductApiConfig(ctx context.Context, productID string) (*responses.ProductApiConfigResponse, error)
diff --git a/internal/application/product/product_application_service_impl.go b/internal/application/product/product_application_service_impl.go
index bfc242b..f47f1ed 100644
--- a/internal/application/product/product_application_service_impl.go
+++ b/internal/application/product/product_application_service_impl.go
@@ -357,9 +357,9 @@ func (s *ProductApplicationServiceImpl) UpdatePackageItems(ctx context.Context,
 	return s.productManagementService.UpdatePackageItemsBatch(ctx, packageID, cmd.Items)
 }
 
-// GetAvailableProducts 获取可选子产品列表
-// 业务流程：1. 获取启用产品 2. 过滤可订阅产品 3. 构建响应数据
-func (s *ProductApplicationServiceImpl) GetAvailableProducts(ctx context.Context, query *appQueries.GetAvailableProductsQuery) (*responses.ProductListResponse, error) {
+// GetAvailableProducts 获取可选子产品列表（管理员端，返回包含成本价的数据）
+// 业务流程：1. 获取启用产品 2. 过滤可订阅产品 3. 构建管理员响应数据
+func (s *ProductApplicationServiceImpl) GetAvailableProducts(ctx context.Context, query *appQueries.GetAvailableProductsQuery) (*responses.ProductAdminListResponse, error) {
 	// 构建筛选条件
 	filters := make(map[string]interface{})
 	filters["is_package"] = false // 只获取非组合包产品
@@ -385,13 +385,13 @@ func (s *ProductApplicationServiceImpl) GetAvailableProducts(ctx context.Context
 		return nil, err
 	}
 
-	// 转换为响应对象
-	items := make([]responses.ProductInfoResponse, len(products))
+	// 转换为管理员响应对象（包含成本价，用于组合包配置）
+	items := make([]responses.ProductAdminInfoResponse, len(products))
 	for i := range products {
-		items[i] = *s.convertToProductInfoResponse(products[i])
+		items[i] = *s.convertToProductAdminInfoResponse(products[i])
 	}
 
-	return &responses.ProductListResponse{
+	return &responses.ProductAdminListResponse{
 		Total: total,
 		Page:  options.Page,
 		Size:  options.PageSize,
@@ -514,6 +514,7 @@ func (s *ProductApplicationServiceImpl) convertToProductInfoResponse(product *en
 				ProductName: item.Product.Name,
 				SortOrder:   item.SortOrder,
 				Price:       item.Product.Price.InexactFloat64(),
+				CostPrice:   item.Product.CostPrice.InexactFloat64(),
 			}
 		}
 	}
@@ -560,6 +561,7 @@ func (s *ProductApplicationServiceImpl) convertToProductAdminInfoResponse(produc
 				ProductName: item.Product.Name,
 				SortOrder:   item.SortOrder,
 				Price:       item.Product.Price.InexactFloat64(),
+				CostPrice:   item.Product.CostPrice.InexactFloat64(),
 			}
 		}
 	}