Energy-saving hydraulic horizontal pumping unit

The invention discloses an energy-saving hydraulic horizontal oil pumping unit which comprises an inhaul cable, a movable pulley block, a fixed pulley block, a balance weight unit, a guide pulley block, a servo hydraulic unit and a control unit for controlling the servo hydraulic unit to be opened and closed, and the guide pulley block comprises a first guide fixed pulley, a second guide fixed pulley and a third guide fixed pulley. One end of the inhaul cable passes through the first guide fixed pulley and then is connected with a sucker rod, the other end of the inhaul cable bypasses the second guide fixed pulley and then is divided into an inhaul cable I and an inhaul cable II, the inhaul cable I penetrates through the movable and fixed pulley block and then is fixedly arranged, and the servo hydraulic unit is connected with the movable and fixed pulley block through a connecting piece. The inhaul cable II penetrates through the third guide fixed pulley and then is connected with the balance weight unit, so