In this study, focusing on the sustainability of the environment and health, it has proposed a mobility that human-powered. The proposed system is designed on the “Man-powered robotics”, which realizes the intelligent operation by controlling the power to be transmitted to the output shaft in the robot system. Manpower to implement the safety control in mobility to the power source, it puts control to allow prolonged exercise. As a result , to health by increasing the chance of occupant movement. In this paper, the mobility of design is discussed. Specifically, the design of the drive mechanism based on the required specifications is described.