Abstract：The designed car which regards single-chip computer (STC89C52) as the core，is composed of motorand servo，plus photoelectric sensors，as well as other power circuit．STC89C52 will deal with all the information to control the motors of the car which can make the car realize the request of the design quickly and accurately．The design of control system were include hardware circuit and software．Hardware circuit part of control steering motors system mainly includes controller，sensor，and motor driver chip． Through the collection and processing of signals of all kinds of sensors in the forward path ，the controller can deal with the information to make the vehicle can preferably carry out the moving control of drive in the path，and the processing display and audible and visual alarms of relevant information．
