As an unmanned surface vehicle, wave glider utilizes wave energy and solar power through its multi-body structure, including floating body, cable and underwater glide body. Its super endurance (up to years) is very suitable for large-scale and long-term ocean environment observation applications. Through the introduction of flexible webbed wings (FWWs), this paper proposes a new design method to overcome the deficiencies in former wave glider, such as complex structure, poor maneuverability, and low wave energy conversion efficiency, etc. Obviously, the FWWs are significant components of the wave glider to achieve the wave energy conversion and generate driving force. Firstly, the calculation model of the FWWs driving force is established based on the movement principle of the wave glider with webbed wings (WGWW). Then, the analysis on the driving force of FWWs under different bending deformation conditions is completed through the CFD method. Finally, the feasibility of the FWWs is verified through the WGWW prototype and its pool experiments.