Abstract: A motor brake includes a locating plate affixed to a motor around the motor shaft, an outer panel connected to the locating plate with screws, a brake lining affixed to the locating plate, an inner panel movable along the screws between the brake lining and the outer panel, spring members connected between the inner panel and the outer panel for forcing the inner panel against the brake lining to stop the shaft of the motor from rotation, and two windings respectively mounted in the inner panel and the outer panel for attracting each other to move the inner panel away from the brake lining for allowing rotation of the motor shaft when electrically connected.