The invention relates to a hot-rolled casting surface oxide scale treatment method. The method uses surface cleaning equipment. The surface cleaning equipment comprises a bottom plate, a workbench, amounting rack and a cleaning mechanism; the specific method flow for cleaning the oxide scale on the hot-rolled casting surface by adopting the surface cleaning equipment comprises the following stepsof equipment regulation, material loading, preliminary cleaning, secondary cleaning and blanking; the cleaning mechanism comprises a limiting seat, a connector, a lifting cylinder, a cleaning branchchain, and an adjusting branch chain; the cleaning branch chain comprises a cleaning plate, a cleaning block, a butt-joint pole, a movable plate, a butt-joint cylinder, a rotating cam, a connecting sliding block and a rotating motor. By adopting a multi-statin design mode, a plurality of casting surface can be cleaned at the same time, the polishing degree can be adjusted as actual working requirement during the cleaning process, thereby improving the cleaning effect, and reducing the residue of the oxide scale on the recasting surface.