Develop agricultural mechanization, improve work efficiency, and improve agricultural production efficiency. In a big agricultural country like ours, it seems that it is an important tool. As a tool in agricultural production, the lawn mower has the most direct impact on the yield of crops. Its invention is a human being. A major advance in civilization. Lawn mower, also known as weeding machine, lawn mower, lawn trimmer, etc., a lawn mower is a mechanical tool for mowing lawns, vegetation, etc., with diesel engines and gasoline engines. It is composed of cutter head, engine, traveling wheel, traveling mechanism, blade, handrail, control and other parts. The blade uses the high-speed rotation of the engine to greatly increase the output speed, which saves the work time of the weeding workers and reduces a lot of human resources. In countries with highly developed animal husbandry mechanization, the research on new lawn mowers is developing in the direction of high speed and energy saving.