Unmanned aerial-undersea vehicles(UAUVs), with broad application prospects in both military and civilian fields, have gradually become a research hotspot in the field of robotics in recent years. UAUVs were taken as the research object in this study, and the development status of the bionic, multirotor, fixed-wing, and hybrid UAUV prototypes were discussed. In addition, the water-entry/exit strategies of the prototypes were reviewed. The important issues faced in the research on UAUVs were summarized, including the optimal design of bionic configuration, stability control during the trans-medium process, and propulsion selection, providing a reference for the subsequent research and development of trans-medium vehicles.
