Tractor high-pressure lifting control system

The invention discloses a tractor forced lifting control system which comprises a rack, a gearbox shell is arranged above the rack, a lifter shell is arranged above the gearbox shell, and an oil cylinder mounting seat is arranged on the outer wall of the gearbox shell; the lifting arm is rotationally mounted on the outer wall of the lifter shell through a rotating shaft; the bottom end of the lifting oil cylinder is installed on the oil cylinder installation base in a hinged mode, and the top end of the lifting oil cylinder is installed on the lifting arm in a hinged mode. The lower pull rod is hinged to the outer wall of the rack; a lifting rod; a multi-way valve; and a control valve block. The device has the beneficial effects that the multi-way valve is matched with the control valve block to adjust the flow direction of hydraulic oil, so that extension and contraction of the lifting oil cylinder are controlled, the lifting arm drives the lifting rod to rotate, the height of the lower pull rod and the hung