A degradable ground film punching device includes a material roller, a guide roller, a punching device, a parallel roller and a finished product roller. The material roller is arranged above a frame, and the finished product roller is arranged below the frame. The guide roller is hinged to one side of the material roller through a connecting rod. The punching device is arranged above the parallel roller. The punching device includes a cylinder, a punching frame, a track bracket, a punching mechanism and a bottom plate. The cylinder is arranged above the punching frame, and a track bracket is arranged below the punching frame. A plurality of punching mechanisms are arranged on the track bracket. A bottom plate is arranged directly below the punching mechanism. The punching mechanism can be slidably connected to the track bracket. The cylinder is connected to the track bracket. The punching mechanism includes a slider, a pressure block and a guide rod. A guide rod is arranged between the slider and the pressure block. A punching knife is arranged on the slider. For the finished film roll, the problem of uneven incision of the punching is solved, the spacing of the punching holes can be adjusted, and the disadvantage of uneven winding of the film roll is solved.