Multifunctional hybrid glider(MHG) is a new type of platform for ocean observation, integrating the concept of underwater glider and wave glider. The implementation scheme of its motion mechanism is proposed in this paper, and with the rubber webbed wings introduced and the structure redesigned, this vehicle can glide on the ocean surface and in the vertical profile. This can overcome the shortcomings of underwater glider and wave glider, such as low carrying capacity of underwater glider and its only underwater gliding mode, the complicated structure of wave glider and its only ocean surface gliding mode. MHG will be more suitable for large scale, multitasking and long-term three-dimensional ocean observation in the comprehensive and complex ocean environment.