Based on the complexity of aerodynamics caused by the complex structure and operating conditions of ground vehicles, as well as the new aerodynamic problems brought about by high-speed driving, with the help of aero-acoustic wind tunnel , numerical and theoretical methods, Shanghai Automotive Wind Tunnel Center carries out research on flow mechanism and prediction methods, and seek breakthroughs in the basic theories and prediction methods of aerodynamics; Based on the new idea of combining aerodynamics and styling design, we carry out research on new technologies and methods for vehicle design, and explore the organic unity of aerodynamics and styling design; On the basis of the above research, with the aim of safety, comfort, energy conservation and environmental protection, aerodynamic optimization control methods are studied in the key technologies of drag reduction design and driving stability.