The invention discloses a power cable winding device. The device comprises an electronic weighing scale, wherein the top of the electronic weighing scale is fixedly provided with a placement seat, a placement groove is formed in the top of the placement seat, and a first installation groove is formed in the inner wall of the bottom of the placement groove; a driving motor is installed in the firstinstallation groove, a threaded rod is welded on an output shaft of the driving motor, and a rotating barrel is arranged above the driving motor; a threaded groove is formed in the bottom end of therotating barrel, and the threaded rod is in threaded connection with the threaded groove; and the top end of the rotating barrel extends to the position above the placement seat, a vertical plate is welded on one side of the top of the placement seat, a sliding groove is formed in the top of the side, close to the rotating barrel, of the vertical plate, and a sliding plate is arranged in the sliding groove in a sliding mode. According to the power cable winding device, practicability is high; the rotating barrel can be conveniently taken out through the threaded rod and the threaded groove, furthermore, a wire body can be conveniently wound through a first rotating shaft and a moving plate, dust on the wire body can be conveniently removed, and recovery efficiency of the cable body is effectively improved.