Automotive Front Lighting System (AFS) can receive the steering signal and the vehicle speed signal to automatically adjust the position of the headlamps light's body. AFS will provide drivers more information of the front road to protect drivers safe when driving at night. AFS works when there is a steering signal input. However, drivers often need the front road's information before they turn the steering wheel when vehicles are going to go round a sharp corner, AFS will not work in such a situation. In order to solve this problem, this paper studied how to foresight the front road and optimize the working time of AFS based on GIS (Geographic Information System) and GPS (Geographic Information System). This paper built the model of the vehicle steering characteristics with the relationship between the headlamp steering lighting and the angle of the steering wheel based on the follow-up steering law of headlamps of AFS. Then discussed the feature of " blind spot" when the driver going to go round a sharp corner. Taking into account the characteristics of GIS , GPS and driving conditions, this paper researched the feasibility of the steering side headlight adjusted the position of the light's body before the vehicle go through the sharp corner. Finally, the simulated driving system had been built to simulate the situation of actual driving vehicles. The results of this study showed that AFS can make the steering side headlight adjusted the position of the light's body most effectively before the vehicle went through corner with the radius between 15~25 meters based on GIS and GPS, it can enhance about 15% effective driving visual areas for drivers when the vehicle driving at night to reduce the incidence of accidents.