The main route of transmission of the new coronavirus is the transmission of droplets and contact transmission in the respiratory tract. Thorough disinfection of the public environment is one of the important measures to prevent the epidemic. The traditional disinfection methods are mostly manual spraying of disinfectant for disinfection, and the workload is large., It is easy to leave dead corners, and there is a hidden danger of contact infection. "Retrograde Drone" is an intelligent disinfection drone, which can be used for disinfection work in large, such as railway stations, airports, subway stations, etc., intelligent unmanned aerial vehicles replace manual spraying disinfectant, with accurate routes and high work efficiency. The fuselage is also equipped with ultraviolet light-emitting diodes to disinfect the fuselage and the surrounding space. "Retrograde Drone" reduces the infection probability of front-line anti-epidemic personnel and increases the elimination efficiency, thus solving the problems of shortage of epidemic prevention and control personnel, high infection risk and low efficiency.