Air suspension system

The invention discloses an air suspension system comprising an air spring, a shock absorber assembly, a lower thrust rod, a limiting block assembly, a supporting arm beam, a transverse stabilizing rod, a suspender assembly, an upper thrust rod, an axle and a frame. The shock absorber assembly, the limiting block assembly, the suspender assembly and the axle are installed on the frame, the supporting arm beam is connected with the axle, and the shock absorber assembly, the lower thrust rod and the transverse stabilizing rod are all connected with the supporting arm beam; the upper thrust rod adopts two straight thrust rods arranged in a V shape, an upper thrust rod support with a thrust rod connector is arranged on the axle, and the upper thrust rod is connected with the thrust rod connector of the upper thrust rod support through one ends of the two straight thrust rods to be installed on the front portion of the axle. According to the air suspension system, the upper thrust rod adoptsthe double I-shaped stra