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In order to design an intelligent car with obstacle avoidance, tracking, remote control and speed measurement functions, a Cyclone 2 chip is used as the control core of FPGA. The modular design concept is used to design the hardware circuit and software program of the intelligent car. Infrared tube, ultrasonic sensors, Bluetooth modules and Hall elements are used to achieve the functions of the car. In order to handle the tracking problem of small turning radius of software programming, a tracking method of intelligent car is innovatively put forward, which combines the actual operation of vehicles. Relevant control parameters are also measured in the actual field debugging, such as car Turnover Time T when turning. After the on-site system test, the designed smart car is running smoothly and with excellent performance.