Abstract: The makeup and working principle of arresting net recovery system of unmanned aerial vehicle are introduced. And some key technique problems,including design of net body and turbine damper and calculation of arresting course,are discussed. Moreover,the performance calculation results of the arresting net recovery system of certain unmanned aerial vehicle are offered. The theory basis results from research of the paper for the engineering design of the arresting net recovery system of certain unmanned aerial vehicle. And the research result has been used for the development of certain unmanned aerial vehicle system.