diff --git a/internal/model/dto/asset_dto.go b/internal/model/dto/asset_dto.go
index c95cfc8..9301779 100644
--- a/internal/model/dto/asset_dto.go
+++ b/internal/model/dto/asset_dto.go
@@ -108,6 +108,7 @@ type AssetPackageResponse struct {
 	PackageID         uint       `json:"package_id" description:"套餐ID"`
 	PackageName       string     `json:"package_name" description:"套餐名称"`
 	PackageType       string     `json:"package_type" description:"套餐类型：formal/addon"`
+	ExpiryBase        string     `json:"expiry_base,omitempty" description:"到期时间基准 (from_activation:实名激活时起算, from_purchase:购买时起算)"`
 	OrderID           uint       `json:"order_id" description:"关联订单ID（无订单分配时为0）"`
 	OrderNo           string     `json:"order_no,omitempty" description:"订单号快照（无订单分配时为空）"`
 	RefundID          *uint      `json:"refund_id,omitempty" description:"退款主键ID快照（未退款时为空）"`
diff --git a/internal/service/asset/service.go b/internal/service/asset/service.go
index 75572b6..2a5fd19 100644
--- a/internal/service/asset/service.go
+++ b/internal/service/asset/service.go
@@ -736,17 +736,20 @@ func (s *Service) GetPackages(ctx context.Context, assetType string, id uint, pa
 		metrics := u.BuildTrafficMetrics()
 		pkgName := u.PackageName
 		pkgType := ""
+		expiryBase := ""
 		if pkg != nil {
 			if pkgName == "" {
 				pkgName = pkg.PackageName
 			}
 			pkgType = pkg.PackageType
+			expiryBase = pkg.ExpiryBase
 		}
 		item := &dto.AssetPackageResponse{
 			PackageUsageID:    u.ID,
 			PackageID:         u.PackageID,
 			PackageName:       pkgName,
 			PackageType:       pkgType,
+			ExpiryBase:        expiryBase,
 			OrderID:           u.OrderID,
 			OrderNo:           u.OrderNo,
 			RefundID:          u.RefundID,
@@ -815,17 +818,20 @@ func (s *Service) GetCurrentPackage(ctx context.Context, assetType string, id ui
 	metrics := usage.BuildTrafficMetrics()
 	pkgName := usage.PackageName
 	pkgType := ""
+	expiryBase := ""
 	if pkgErr == nil && pkg != nil {
 		if pkgName == "" {
 			pkgName = pkg.PackageName
 		}
 		pkgType = pkg.PackageType
+		expiryBase = pkg.ExpiryBase
 	}
 	return &dto.AssetPackageResponse{
 		PackageUsageID:    usage.ID,
 		PackageID:         usage.PackageID,
 		PackageName:       pkgName,
 		PackageType:       pkgType,
+		ExpiryBase:        expiryBase,
 		OrderID:           usage.OrderID,
 		OrderNo:           usage.OrderNo,
 		RefundID:          usage.RefundID,