Abstract: This paper focuses on the movement efficiency of wave-driven unmanned surface vehicle (WUSV). Firstly, the driving principle of WUSV is analyzed and the formula for calculating the driving force is derived. Then, combined with the wave theory, the model of movement efficiency is established from the perspective of energy conversion. Finally, the effects of wave height, wave period and wing rotation angle on the movement efficiency are analyzed and calculated through the experimental platform of WUSV, which provides the foundation and basis for further study in the dynamics model and efficiency optimal analysis of WUSV.