In order to overcome the disadvantages of traditional method for automobile anti-collision, the design idea was proposed to slow down the own automobile little by little. The fuzzy logic theory was adopted to design the controller for automobile anti-collision. The membership functions were defined according to the input and output fuzzy set. By means of gravity center of area, the surface chart of intelligent controller for automobile anti-collision was achieved. This method can effectively prevent the car crash, motor vehicles and personnel on board can also be protected.