Automobile chassis

The invention belongs to the technical field of vehicle equipment, and particularly relates to an automobile chassis. The automobile chassis comprises a chassis main beam, a chassis cross beam and a supporting cross beam, the number of the chassis main beams is two, the two chassis main beams are arranged in parallel, the cross section of each chassis main beam is in a U shape, and openings of the two chassis main beams are oppositely arranged. The number of the supporting cross beams is multiple, all the supporting cross beams are arranged between the two chassis main beams, the length direction of the supporting cross beams is perpendicular to the length direction of the chassis main beams, the chassis cross beams are arranged at the ends of the chassis main beams, and the two ends of each chassis cross beam are fixedly connected with the two chassis main beams respectively. The cross section of the chassis main beam in the automobile chassis is of the U-shaped structure, the bending moment capable of being