Lightweight balanced suspension system and automobile

The invention relates to a light-weight balanced suspension system and an automobile. The light-weight balanced suspension system comprises an automobile frame cross beam, two balanced suspension supports, two steel plate spring assemblies and two on-axle supports. The frame cross member is arranged along a first direction; the two balanced suspension brackets are symmetrically connected to the two ends of the frame cross beam, and a transverse pulling plate is connected between the two balanced suspension brackets; the two steel plate spring assemblies are respectively connected to the two balanced suspension brackets; the on-axle supports are parallel to the frame cross beam and symmetrically arranged on the two sides of the frame cross beam, and the two ends of each steel plate spring assembly are connected with the two on-axle supports respectively. According to the scheme, the transverse pulling plate is connected between the two balanced suspension brackets, so that on one hand, the transverse pulling p