Abstract:With the rapid development of information technology and the application of managerial technique of the health for UAV, the maintenance mode of UAV has changed greatly.Nowadays, the new maintenance mode which maintains UAV according to the real-time is coming for its advantage both in economy and time,and now it has become one of the core technologies of advanced unmanned aerial vehicles, has become an emerging science and technology. Many foreign military UAV technology thanks to evaluate health status, greatly reducing the use and maintenance costs ,improving the reliability of the use of UAV. Combine with a type of UAV, this paper described the proposed assessment of the health status of UAV technology, implementation methods and trends . By using the methods that this paper put forward ,we can efficiently integrate all valuable information of a UAV to an index which embodies the health state of the UAV. The result of the health of UAV according to the health index will be very helpful for engineers to manage the UAV more conveniently and efficiently.