Abstract: On solving the problem of the flight safety of the UAV, techniques, methods and measures of improving the mission flight safety of the UAV are introduced, a design route of the UAV safety controller which is independent of the flight control system of the UAV is proposed, and based on GPS. Through researching of safety control tactics, a safety controller is designed. The simulation experiment of the controller is made to a UAV. The results are given and prove that the safety controller is effective.

Key words: UAV, Flight control system, Safety controller, Safety control area, Simulation experiment