The invention relates to the field of automatic mechanical devices, and relates to an edging device of a bearing for an automobile, in particular to an edging machine of a bearing with a seal ring. The edging machine comprises an automatic feeding machine, a multi-station edging machine body connected with the automatic feeding machine, and a control unit for controlling the automatic feeding machine and the multi-station edging machine body. The automatic feeding machine comprises a vibration feeding device and a straight output passageway connected with the discharge end of the vibration feeding device. The straight output passageway extends to the multi-station edging machine body. The multi-station edging machine body comprises a machine frame. The machine frame comprises a supporting frame and a bottom supporting plate fixed into the supporting frame. A multi-station rotating plate and a feeding loading device, a pressing detecting device, an edging device, a CCD detecting device, a qualified product sorting device and a vacant site detecting device which are sequentially arranged around the multi-station rotating plate in the circumferential direction are installed on the bottom supporting plate.