Abstract: A method of magneto-electric hybrid drive and power unit, characterized in that the unit includes a trigger control circuit (5), a cylinder block (1), a permanent magnet set (2), a piston assembly (3) and a pole changing drive coil (4). The said piston assembly (3) is inserted and set in the cylinder barrel. The said permanent magnet set (2) includes an upper permanent magnet (21) and a lower permanent magnet (22). The said upper permanent magnet (21) is set on the top of the cylinder barrel. The said lower permanent magnet (22) is set on the upper end face of the piston assembly (3). The said pole changing drive coil (4) is set on the lower end face of the upper permanent magnet (21) and is connected with the said trigger control circuit (5). The unit converts electric energy into mechanical energy by employing the nature of magnet that opposite poles attract and like poles repel.