Taking a certain type of tilt-wing UAV as the research object, the motion mode of each component during the transition period is analyzed, in order to enable the UAV to fly smoothly and successfully complete the transition phase, a tilting device with a worm and wormwheel mechanism as the main component is designed. The worm and wormwheel device is smooth transporting power and can make the tilting wing part have a self-locking effect, so that it does not get relative motion due to the influence of air force after reaching the predetermined position, and it will also ensure the stability of the forward flying mode of the UAV. The platform is a tool for analyzing the movement conditions of the tilting device and completing the strength and life check analysis of the device. The analysis results show that the designed device can meet the existing strength and life requirements, and the calculation results can provide some reference for subsequent optimization.