The invention relates to an electromagnetic clutch system, in particular to a self-return type electromagnetic clutch. The self-return type electromagnetic clutch comprises coupling assemblies and anelectromagnetic drive assembly. The number of the coupling assemblies is two, each coupling assembly comprises a coupling and a return part, the two couplings are arranged at the ends of two shafts ina manner of being capable of moving axially and rotate together with the shafts, the ends, close to each other, of the two couplings serve as coupling ends, and the two couplings move axially and oppositely under the action of the electromagnetic drive assembly till the two coupling ends are connected to achieve coupling. The two couplings are separated under the action of the return parts, and coupling is cut off. The electromagnetic drive assembly is assembled on the periphery of the boundary of the two sets of coupling assemblies in a clearance manner, the electromagnetic drive assembly ispowered on to form a magnetic loop, and the magnetic loop passes through the two couplings. The technical problems that in the prior art, an electromagnetic adsorption assembly of an electromagneticclutch rotates along with a shaft, consequently, an external power source cannot be turned on conveniently, or a power source is arranged internally, consequently, the structure is complex, and the size and mass are increased are solved.