An electromagnetic clutch, comprising: a housing (1), the center of the housing (1) being formed with an axial tubular channel (15), and an annular accommodating cavity (14) being formed around the tubular channel (15); a bearing (2) corresponding to the tubular channel (15) and fixed at one end of the housing (1); an electromagnetic coil (4) surrounding the tubular channel (15) and disposed in the annular accommodating cavity (14); an iron core (7) disposed in the tubular channel (15) and having one end exposed out of an end surface of the housing (1); a gear (8) disposed at the outer side of one end of the iron core (7); a damping member (10) attached at the outer side of the gear (8); and a transmission shaft (6) sequentially passing through the damping member (10), the gear (8), and the iron core (7) to be inserted into the bearing (2), the transmission shaft (6) and the iron core (7) being fixedly connected and thus able to rotate synchronously. The damping member (10) attached to the gear (8) is sleeved on the transmission shaft (6), such that the structure is simple, it is not prone to failure, and the costs are low.