diff --git a/internal/routes/asset.go b/internal/routes/asset.go
index 5b02f5b..fa9cba0 100644
--- a/internal/routes/asset.go
+++ b/internal/routes/asset.go
@@ -23,7 +23,7 @@ func registerAssetRoutes(router fiber.Router, handler *admin.AssetHandler, walle
 
 	Register(assets, doc, groupPath, "GET", "/:identifier/realtime-status", handler.RealtimeStatus, RouteSpec{
 		Summary:     "资产实时状态",
-		Description: "读取 DB/Redis 中的持久化状态，不调网关。",
+		Description: "查询资产实时状态。卡类型：读取 DB/Redis 持久化状态；设备类型：实时调用 Gateway sync-info 接口获取最新数据，Gateway 失败不阻断主流程（DeviceRealtime.gateway_msg 返回失败原因）。",
 		Tags:        []string{"资产管理"},
 		Input:       new(dto.AssetIdentifierRequest),
 		Output:      new(dto.AssetRealtimeStatusResponse),