Hook type shot blasting machine by two hook loading workpiece alternately into the shot blasting cleaning room. The shot blasting device is used to throw 0.2~0.8 pellets onto the surface of the workpiece, so that the surface of the workpiece reaches a certain roughness, so that the work piece becomes beautiful, or change the compressive stress of the workpiece to improve the life. This model is widely used in casting, construction, chemical industry, motor, machine tool and other industries of medium and small casting, forging surface cleaning or strengthening treatment.