Compared with traditional means of transportation, electric hover board have the following technical advantages. 1 Pure electric drive, zero emission, environmental protection and pollution-free; 2 Intelligent control, flexible control, automatic balance based on inverted pendulum principle, gravity sensing, superior stability; 3 Flexible movement and stable steering. The electric two-wheel hover board has zero turning radius and can move flexibly in a narrow space; 4 Small size, can be used by public transport, does not occupy space, braking is sensitive, and the acceleration and deceleration can be achieved by adjusting the front and rear center of gravity of the human body; 5 Modular structure, easy maintenance, novel modeling and control mode, and expandable self-balancing platform; 6 It is easy to drive without special training, and can be controlled freely with a little proficiency.