Abstract: The present invention discloses an electrical push device, comprising a motor (1), a housing (2), and an axially movable push rod (3) provided in the housing (2). A lead screw (4) whose helix rise angle is larger than the locking angle is provided in the push rod (3). A screw nut (5) is provided in the inner end of the push rod (3), and the screw nut and the lead screw (4) constitute a screw pair. The inner segment of the lead screw is provided with a supporting bearing (8). The inner end of the lead screw (4) is connected with the shaft of the motor (1). The electrical push device includes an electromagnet (6) and a brake pair (7). A spring (6b) acting on the moving core (6a) of the electromagnet (6) is provided in the stationary core (6c) of the electromagnet (6). The brake pair (7) includes a rotating brake disc (7a) and a translational movement brake disc (7b). The rotating brake disc (7a) is connected with the shaft of the motor (1).