The air suspension system is composed of a driving control computer, air springs, compressors, shock absorbers, height sensors, etc. The compressor provides effective compressed air to the air spring to adjust the height, shape and damping of the air suspension system. In this way, the air suspension system can control vehicle vibration and vehicle height as a whole. According to the driver's control requirements of the vehicle, the soft and hard chassis system is gradually realized to adjust the suspension, thereby realizing the special requirements of vehicle driving stability and riding comfort. The current air suspension of the vehicle has active suspension and semi-active suspension, which is to confirm the softness and hardness of the vehicle chassis through the speed and road conditions of the vehicle, to provide passengers with a more comfortable environment, and to meet the requirements of the passengers for the vehicle. Claim.