Abstract: In order to improve the handling stability and ride comfort of passenger cars, the control strategy of active suspension height control system is studied in this paper.According to the working principle of active suspension height control system, the development process based on “model design” is adopted, the system structure of active suspension height controller is analyzed, and the control strategy of active suspension height control system including speed control module, manual control module and lifting control module is developed.The simulation and bench test show that the control strategy of the active suspension height control system developed in this paper can effectively adjust the suspension height.