This system is electric hydraulic cylinder device. It consists of motor, coupling, pump, oil tank, oil input-plate, oil output-plate, oil hose, hydraulic cylinder and connecting head. Connecting head can stand out and back while motor operates clockwise or counterclockwise. Motor coupled with pump, oil and be transferred through oil input-plate and oil output-plate to let cylinder out and back. Connecting head connected with cylinder by screw cylinder shaft can be Y type or T type to couple the other mechanism.