We are facing the super-aging society in recent Japan. The concern for the welfare equipment has been rising along with it. Especially, the electric wheelchair has been researched. The sense of incompatibility with early reaction to the input and rapid acceleration remained when the electric wheelchair that has appeared on the market is actually used. To solve that, special skills at the operation is needed. However, it is thought that it is very difficult for the senior citizen and handicapped persons to operate it Like this. To solve this problem, we developed the operating control system that used the H8 microcomputer and examined the input interface.