Rear disc mower, mainly used for harvesting all kinds of pasture. The lawn mower is connected to the rear side of the tractor (20-90HP) to suspend the traction frame, and the power output shaft drives the work. The machine is equipped with a boring blade on each cutter head, which can work at a high speed of 2.4 hectares per hour and has extremely high productivity. Due to the spring suspension and the downward rotation of the belt, the knife beam is low, easy to lift, can be cut close to the ground, low cutting, and has good profiling ability to the surface. The cutting blade can be hit back when it encounters a large obstacle to avoid damage to the blade. The lawn mower relies on the rotational force of the turntable to concentrate the grass in the middle for easy collection.