The invention discloses a magnetorheological damper for an automotive suspension. The magnetorheological damper comprises a damper body and a cooling device, wherein the cooling device is connected with the damper body. The magnetorheological damper for the automotive suspension, disclosed by the invention, is provided with the cooling device which is connected with the damper body, and the cooling device can cool the damper body, therefore the influence on the use performance of the damper, caused by overhigh temperature, is prevented.