Full-load body skeleton structure of passenger car

The utility model discloses a full-load body skeleton structure of a passenger car. The full-load body skeleton structure comprises an upper body skeleton assembly and a lower chassis skeleton assembly, which are spliced and connected, wherein both sides of the body skeleton assembly and the chassis skeleton assembly are fixedly connected through a row of connecting pieces. According to the utility model, welding of the body skeleton, assembly of a body part, welding of a chassis skeleton and assembly of a chassis part are simultaneously carried out in a doubling manner, after production of the full-load body skeleton structure of the passenger car is completed, the structural intensity of the full-load body is ensured, and the production period of the whole car is greatly reduced, so that the production cost and the management cost are greatly reduced.