Unmanned aerial vehicle system is a complex system composed of multiple subsystems with unmanned aircraft as the main body, integrating aeronautical technology, information technology, control technology, measurement and control technology, sensing technology, new materials, new energy and other multidisciplinary technologies, and has become a new development direction of aerospace. The development history of UAV can be traced back to the 1920s, due to the technological progress and war demand, UAV has gradually developed into one of the important parts of the weaponry of all countries in the world, especially the developed countries, and unmanned has also increasingly become one of the directions of the future war development, while the UAV is also being developed to the civilisation. At the end of the twentieth century, the development of unmanned aerial vehicles has entered a new era and three waves of development have been formed. At present, all major countries in the world are actively developing unmanned aerial vehicles, despite their different directions and degrees of development, and are expanding them into the civilian sphere while further developing their military applications, with the climax of the development of unmanned aerial vehicles on the horizon.