Considering the flight performance and dynamics of the flapping wing aircraft，this paper designs adesigned，and the relevant mechanism parameters and motion parameters are determined． Using SolidWorks to carry out three-dimensional modeling and dynamic simulation analysis of the designed mechanical structure，and adopt ANSYS and ADAMS to carry out force analysis of flapping wing aircraft． On the basis of relevant research， simulation experiment analysis is carried out． The simulation results show that the designed mechanical structure meet the basic function requirements of dragonfly miniature flapping wing aircraft，and it is feasible． It can provide a theoretical reference for the research of dragonfly flapping aircraft．