Electromagnetic silicone oil fan clutch, belongs to the automotive engine cooling system components. Including rotation, installed on the shaft of electromagnetic iron core, characterized by electromagnetic iron core inner ring through the rear of the second mounted on a shaft bearing, electromagnetic iron core through the wire connected to the engine temperature controller, electromagnetic iron core inside equipped with electromagnetic coil inside and outside electromagnetic coil, the electromagnetic coil is equipped with corresponding level and at the end of the plate, one end of the outer electromagnetic coil is equipped with corresponding secondary and disk, primary and dish suits in the secondary and disc, suit together on the shaft, level and dish can slide in the secondary and the disk to cooperate. The invention adopts the inner and outer electromagnetic coils of the electromagnetic iron core to be connected with the engine temperature controller respectively, and the inner and outer electromagnetic coils to attract one and two suction discs respectively, so as to control the opening size of the oil inlet hole, control the speed of the clutch, and ensure the fan running smoothly, low noise, convenient assembly and long service life during the variable speed.