As a new type of aircraft, vertical takeoff and landing UA V has attracted wide attention in the industry. However, it still lacks relevant research about control strategies and solutions to extreme environments. This paper designs and validates two schemes for landing modes in two special environments, including landing in high altitude and mountainous and mobile landing on the ship. First, the design of the control law is carried out step by step. Then we have plenty of flight tests and analyze lots of data. We change the control parameters to achieve the desired results. The research indicates that the two schemes are feasible in engineering practice and can provide technical references.