diff --git a/internal/handler/admin/asset.go b/internal/handler/admin/asset.go
index 6400ac9c..5f66a32a 100644
--- a/internal/handler/admin/asset.go
+++ b/internal/handler/admin/asset.go
@@ -391,6 +391,9 @@ func (h *AssetHandler) CurrentPackage(c *fiber.Ctx) error {
 // UpdatePackageExpiresAt 修改资产套餐过期时间
 // PATCH /api/admin/assets/:identifier/packages/:package_usage_id/expires-at
 func (h *AssetHandler) UpdatePackageExpiresAt(c *fiber.Ctx) error {
+	if err := rejectEnterpriseAssetAdmin(c); err != nil {
+		return err
+	}
 
 	asset, packageUsageID, err := h.resolveAssetPackageUsagePath(c)
 	if err != nil {
@@ -417,6 +420,9 @@ func (h *AssetHandler) UpdatePackageExpiresAt(c *fiber.Ctx) error {
 // UpdatePackageUsage 修改资产套餐已用量
 // PATCH /api/admin/assets/:identifier/packages/:package_usage_id/used-data
 func (h *AssetHandler) UpdatePackageUsage(c *fiber.Ctx) error {
+	if err := rejectEnterpriseAssetAdmin(c); err != nil {
+		return err
+	}
 	asset, packageUsageID, err := h.resolveAssetPackageUsagePath(c)
 	if err != nil {
 		return err
@@ -496,6 +502,9 @@ func (h *AssetHandler) Start(c *fiber.Ctx) error {
 // Deactivate 停用资产
 // PATCH /api/admin/assets/:identifier/deactivate
 func (h *AssetHandler) Deactivate(c *fiber.Ctx) error {
+	if err := rejectEnterpriseAssetAdmin(c); err != nil {
+		return err
+	}
 	if h.assetLifecycleService == nil {
 		return errors.New(errors.CodeInternalError, "资产生命周期服务未配置")
 	}
@@ -590,6 +599,9 @@ func (h *AssetHandler) OperationLogs(c *fiber.Ctx) error {
 // UpdatePollingStatus 更新资产轮询状态
 // PATCH /api/admin/assets/:identifier/polling-status
 func (h *AssetHandler) UpdatePollingStatus(c *fiber.Ctx) error {
+	if err := rejectEnterpriseAssetAdmin(c); err != nil {
+		return err
+	}
 	identifier := c.Params("identifier")
 	if identifier == "" {
 		return errors.New(errors.CodeInvalidParam)
@@ -678,6 +690,9 @@ func (h *AssetHandler) UpdateRealnamePolicy(c *fiber.Ctx) error {
 // UpdateRealnameStatus 手动更新资产实名状态
 // PATCH /api/admin/assets/:identifier/realname-status
 func (h *AssetHandler) UpdateRealnameStatus(c *fiber.Ctx) error {
+	if err := rejectEnterpriseAssetAdmin(c); err != nil {
+		return err
+	}
 	identifier := c.Params("identifier")
 	if identifier == "" {
 		return errors.New(errors.CodeInvalidParam)
@@ -770,3 +785,12 @@ func assetIdentifierForAudit(asset *dto.AssetResolveResponse) string {
 	}
 	return asset.Identifier
 }
+
+// rejectEnterpriseAssetAdmin 拒绝企业账号执行平台管理类资产写操作（改套餐有效期与已用量、停用、开关轮询、改实名状态）。
+// 企业账号即使对已授权资产也不能执行这些操作；停复机仍按企业授权范围放行（由 Resolve 约束）。
+func rejectEnterpriseAssetAdmin(c *fiber.Ctx) error {
+	if middleware.GetUserTypeFromContext(c.UserContext()) == constants.UserTypeEnterprise {
+		return errors.New(errors.CodeForbidden, "企业账号无权执行该资产操作")
+	}
+	return nil
+}
diff --git a/internal/routes/asset.go b/internal/routes/asset.go
index 5afa3ef9..1d9a7a9d 100644
--- a/internal/routes/asset.go
+++ b/internal/routes/asset.go
@@ -14,7 +14,7 @@ func registerAssetRoutes(router fiber.Router, handler *admin.AssetHandler, walle
 
 	Register(assets, doc, groupPath, "GET", "/resolve/:identifier", handler.Resolve, RouteSpec{
 		Summary:     "解析资产",
-		Description: "通过虚拟号/ICCID/IMEI/SN/MSISDN 解析设备或卡的完整详情。exchange_trace 始终存在，previous_asset/next_asset 无关系时为 null；关联项仅在 can_view=true 且 asset_id 非空时允许跳转。企业账号禁止调用。",
+		Description: "通过虚拟号/ICCID/IMEI/SN/MSISDN 解析设备或卡的完整详情。exchange_trace 始终存在，previous_asset/next_asset 无关系时为 null；关联项仅在 can_view=true 且 asset_id 非空时允许跳转。企业账号禁止调用。企业账号只能解析当前授权给本企业的卡或设备，未授权与不存在同样返回未找到；/assets/:identifier/* 下其余接口同此范围。",
 		Tags:        []string{"资产管理"},
 		Input:       new(dto.AssetResolveRequest),
 		Output:      new(dto.AssetResolveResponse),
@@ -58,7 +58,7 @@ func registerAssetRoutes(router fiber.Router, handler *admin.AssetHandler, walle
 
 	Register(assets, doc, groupPath, "PATCH", "/:identifier/packages/:package_usage_id/expires-at", handler.UpdatePackageExpiresAt, RouteSpec{
 		Summary:     "修改资产套餐过期时间",
-		Description: "修改指定资产下某条套餐使用记录的过期时间。仅允许已认证账号调用，并保留资产与套餐记录归属校验。",
+		Description: "修改指定资产下某条套餐使用记录的过期时间。仅允许已认证账号调用，并保留资产与套餐记录归属校验。企业账号无权调用。",
 		Tags:        []string{"资产管理"},
 		Input:       new(dto.UpdateAssetPackageExpiresAtRequest),
 		Output:      new(dto.AssetPackageResponse),
@@ -67,7 +67,7 @@ func registerAssetRoutes(router fiber.Router, handler *admin.AssetHandler, walle
 
 	Register(assets, doc, groupPath, "PATCH", "/:identifier/packages/:package_usage_id/used-data", handler.UpdatePackageUsage, RouteSpec{
 		Summary:     "修改资产套餐已用量",
-		Description: "修改指定资产下某条套餐使用记录的真实已用量(MB)。仅允许已认证账号调用，并保留资产与套餐记录归属校验。",
+		Description: "修改指定资产下某条套餐使用记录的真实已用量(MB)。仅允许已认证账号调用，并保留资产与套餐记录归属校验。企业账号无权调用。",
 		Tags:        []string{"资产管理"},
 		Input:       new(dto.UpdateAssetPackageUsageRequest),
 		Output:      new(dto.AssetPackageResponse),
@@ -94,7 +94,7 @@ func registerAssetRoutes(router fiber.Router, handler *admin.AssetHandler, walle
 
 	Register(assets, doc, groupPath, "PATCH", "/:identifier/deactivate", handler.Deactivate, RouteSpec{
 		Summary:     "停用资产",
-		Description: "将资产状态设置为停用（不可逆）。仅支持库存中或已售出的资产。",
+		Description: "将资产状态设置为停用（不可逆）。仅支持库存中或已售出的资产。企业账号无权调用。",
 		Tags:        []string{"资产管理"},
 		Input:       new(dto.AssetIdentifierRequest),
 		Output:      nil,
@@ -139,7 +139,7 @@ func registerAssetRoutes(router fiber.Router, handler *admin.AssetHandler, walle
 
 	Register(assets, doc, groupPath, "PATCH", "/:identifier/polling-status", handler.UpdatePollingStatus, RouteSpec{
 		Summary:     "更新资产轮询状态",
-		Description: "启用或禁用指定资产（IoT卡或设备）的定期状态轮询；同事务写不轮询清单（来源单资产接口）与审计。网关扩展状态为风险停机或已销户的卡不能开启轮询，返回 403。设备开关级联到设备下各卡（开启时跳过风险停机、已销户的卡）。影响说明见 GET /polling-status/impact。",
+		Description: "启用或禁用指定资产（IoT卡或设备）的定期状态轮询；同事务写不轮询清单（来源单资产接口）与审计。网关扩展状态为风险停机或已销户的卡不能开启轮询，返回 403。设备开关级联到设备下各卡（开启时跳过风险停机、已销户的卡）。影响说明见 GET /polling-status/impact。企业账号无权调用。",
 		Tags:        []string{"资产管理"},
 		Input:       new(dto.UpdateAssetPollingStatusRequest),
 		Output:      new(dto.UpdateAssetPollingStatusResponse),
@@ -157,7 +157,7 @@ func registerAssetRoutes(router fiber.Router, handler *admin.AssetHandler, walle
 
 	Register(assets, doc, groupPath, "PATCH", "/:identifier/realname-status", handler.UpdateRealnameStatus, RouteSpec{
 		Summary:     "手动更新卡实名状态",
-		Description: "手动将指定卡资产标记为已实名或未实名。状态更新后会触发停复机评估，并在标记为已实名时触发待实名套餐激活。",
+		Description: "手动将指定卡资产标记为已实名或未实名。状态更新后会触发停复机评估，并在标记为已实名时触发待实名套餐激活。企业账号无权调用。",
 		Tags:        []string{"资产管理"},
 		Input:       new(dto.UpdateAssetRealnameStatusRequest),
 		Output:      new(dto.UpdateAssetRealnameStatusResponse),
diff --git a/internal/service/asset/enterprise_scope.go b/internal/service/asset/enterprise_scope.go
new file mode 100644
index 00000000..833f226a
--- /dev/null
+++ b/internal/service/asset/enterprise_scope.go
@@ -0,0 +1,42 @@
+package asset
+
+import (
+	"context"
+
+	"github.com/break/junhong_cmp_fiber/pkg/constants"
+	"github.com/break/junhong_cmp_fiber/pkg/errors"
+	"github.com/break/junhong_cmp_fiber/pkg/middleware"
+)
+
+// ensureEnterpriseAssetVisible 校验企业账号只能访问当前授权给本企业的卡或设备。
+// 非企业账号直接放行（由原有店铺数据范围约束）。未授权与不存在返回同一错误，不暴露资产是否存在。
+// 设备授权时会同步为设备内的卡写入卡授权记录，因此卡只看卡授权表。
+func (s *Service) ensureEnterpriseAssetVisible(ctx context.Context, assetType string, assetID uint) error {
+	if middleware.GetUserTypeFromContext(ctx) != constants.UserTypeEnterprise {
+		return nil
+	}
+	notFound := errors.New(errors.CodeNotFound, "未找到匹配的资产")
+	enterpriseID := middleware.GetEnterpriseIDFromContext(ctx)
+	if enterpriseID == 0 || assetID == 0 {
+		return notFound
+	}
+	table, column := "", ""
+	switch assetType {
+	case "card", constants.AssetTypeIotCard:
+		table, column = "tb_enterprise_card_authorization", "card_id"
+	case constants.AssetTypeDevice:
+		table, column = "tb_enterprise_device_authorization", "device_id"
+	default:
+		return notFound
+	}
+	var count int64
+	if err := s.db.WithContext(ctx).Table(table).
+		Where(column+" = ? AND enterprise_id = ? AND revoked_at IS NULL AND deleted_at IS NULL", assetID, enterpriseID).
+		Count(&count).Error; err != nil {
+		return errors.Wrap(errors.CodeDatabaseError, err, "校验企业资产授权失败")
+	}
+	if count == 0 {
+		return notFound
+	}
+	return nil
+}
diff --git a/internal/service/asset/service.go b/internal/service/asset/service.go
index 81e0e532..9b053f7f 100644
--- a/internal/service/asset/service.go
+++ b/internal/service/asset/service.go
@@ -118,7 +118,19 @@ func (s *Service) SetAccessAudit(writer *infraAudit.Writer) {
 // 主路径：查注册表（精确匹配 ICCID 或 VirtualNo）
 // Fallback：原有跨表 OR 查询（处理 IMEI/SN/MSISDN 等非注册标识符）
 // includeUsageSummary 为 true 时额外填充当前世代流量汇总字段
+// 企业账号只能解析当前授权给本企业的卡或设备，其余一律按"未找到"处理（/assets/:identifier/* 共用此入口）。
 func (s *Service) Resolve(ctx context.Context, identifier string, includeUsageSummary bool) (*dto.AssetResolveResponse, error) {
+	resp, err := s.resolveAsset(ctx, identifier, includeUsageSummary)
+	if err != nil || resp == nil {
+		return resp, err
+	}
+	if err := s.ensureEnterpriseAssetVisible(ctx, resp.AssetType, resp.AssetID); err != nil {
+		return nil, err
+	}
+	return resp, nil
+}
+
+func (s *Service) resolveAsset(ctx context.Context, identifier string, includeUsageSummary bool) (*dto.AssetResolveResponse, error) {
 	if s.assetIdentifierStore != nil {
 		regRecord, regErr := s.assetIdentifierStore.FindByIdentifier(ctx, identifier)
 		if regErr == nil && regRecord != nil {