To provide a platform for control algorithm of AFS(Adaptive Front-Lighting System), a semi-physical simulation platform for AFS based on vehicle driving simulator is presented. On the simulation platform, the signal of gear, throttle pedal, clutch pedal, brake pedal and steering wheel of vehicle driving simulator is sampled by PC, and with which the vehicle dynamics model is introduced to simulate the vehicle behavior. Then, the angle of the car front light should be rotated and calculated with the AFS control model, and is later sent to the motor driving model. Next, the actual turning angle of front light is returned to PC. The experiments show that with the semi-physical simulation platform, many parameters can be recorded and displayed, and it helps to make experiment observation and data analysis. It provides a convenient testing platform for control algorithm of AFS.