The utility model relates to motor assembly processing equipment and particularly relates to a motor end cover stator pressing device. The device is provided with a floating plate, a stator pressing fixture upper mounting plate and a lower template. The middle part of the lower surface of the floating plate is provided with a guide plate. The center of the lower surface of the guide plate is provided with a spherical groove. The floating plate is provided with stepped holes which are internally provided with compression springs. Screws with gaskets pass through the stepped holes on the floating plate and are connected with the lower template. Two ends of each of the compression spring are respectively in contact with an upper stepped hole lower end face and the lower surface of a gasket. The center of the upper surface of the lower template is provided with a cylindrical ball head which is sleeved into the spherical groove of the guide plate, and the lower template and the guide plate are movably connected and a gap is formed between them. Four corners of the floating plate are respectively provided with a guide sleeve. The four corners of the lower surface of the stator pressing fixture upper mounting plate are respectively and correspondingly provided with a guide column which is coaxial with the guide sleeve. The motor end cover stator pressing device has the advantages of simple structure and safe and reliable operation, a phenomenon that pressing surfaces are not in parallel when pressing an end cover and a stator is eliminated, and an electromagnetic sound caused by the poor assembly of the end cover and the stator is prevented.