Drones are widely used in civil, police, urban management, agriculture, geology, meteorology, electric power, rescue and disaster relief, video shooting and other industries. Drone have realized electronic, informatized, and intelligent inspections, improving the efficiency of power line inspections, the level of emergency rescue and the reliability of power supply. In emergency situations such as flash floods and earthquake disasters, drones can conduct surveys and emergency investigations on potential hazards of the line, such as the collapse of the tower base, without being affected by the road conditions at all, and it is not necessary to climb the tower. It can also survey the blind corners of the human eye, which is very helpful to quickly restore power.