The amplitude modulation plow is used in conjunction with tractors, and is controlled by a dual distributor to lift and flip the plow. The main frame is welded with special material rectangular tubes, and the plow column, plow wall, and plow share are all made of high-quality 65Mn high manganese steel. After heat treatment, they have good comprehensive properties such as wear resistance and elasticity, and have a long service life. The hydraulic flipping plow includes a suspension frame, a flipping cylinder, a check mechanism, a ground wheel mechanism, a plow frame, and a plow body. The forward and reverse plow bodies on the plow frame are vertically flipped by the extension and contraction of the piston rod in the cylinder, and are alternately replaced to the working position; The ground wheel is a dual-purpose mechanism for adjusting the plowing depth with a screw. The suspension frame is connected to the working host, and the plow body is connected to the plow frame through the plow column. The plow frame is equipped with a ground wheel mechanism, which is characterized in that the cylinder body of the flipping cylinder is hinged to the cylinder seat connected to the plow frame, and there is a piston rod in the cylinder body that performs telescopic motion. The plow frame is fixed with a central shaft, and the rear end of the central shaft sleeve outside the central shaft sleeve is hinged to the piston rod. The front end passes through and is fixed on the crossbeam of the suspension frame. The piston rod drives the central shaft to rotate in the central shaft sleeve by connecting with the cylinder seat and the plow frame.