The advent of plant protection drones has completely changed the traditional spray operation mode. The drones are equipped with medicine boxes, and the pilots can remotely control them through the remote control to achieve ultra-low-altitude and ultra-low-volume aerial spraying of plant protection drones. Due to its unique advantages such as high operation efficiency, water saving and medicine saving, track planning and tracking flight and all-terrain autonomous operation, it has won the favor of users in plains, hilly and mountainous areas and various crops, especially for hilly mountainous areas and orchard crops. , breaking the restrictions of terrain, is a new type of intelligent agricultural equipment that solves the "inorganic availability" of hilly and mountainous areas.