The lever self-operated control valve adopts the eccentric design of the actuator and does not require a large actuator to reduce the overall weight of the valve. The lever mechanism is designed in the form of a fulcrum, a valve stem and a push rod, and the adjustment range is increased (the minimum range of the valve can be adjusted to 0.3 Kpa). The adjustment accuracy can reach 5%; the reverse-mounted valve core can convert the unbalanced force into sealing force.