The invention provides a vehicle body structure and a vehicle. The vehicle body structure comprises a rear floor, a left side wall, a right side wall, a left rear crossbeam, a right rear crossbeam anda rear wall assembly, wherein a rear floor middle crossbeam is arranged on the rear floor; the left side wall is connected with the rear floor and arranged on the left side of the rear floor, and theright side wall is connected with the rear floor and arranged on the right side of the rear floor; the left rear crossbeam is connected between the rear floor and the left side wall, and a left rearcrossbeam cavity is formed in the left rear crossbeam; the right rear crossbeam is connected between the rear floor and the right side wall, and a right rear crossbeam cavity is formed in the right rear crossbeam; and the two ends of the rear wall assembly are connected with the rear end of the left side wall and the rear end of the right side wall, and the rear wall assembly is connected with therear floor through a rear floor left longitudinal beam and a rear floor right longitudinal beam. The vehicle body structure has multiple force transmission ways and can effectively absorb impact energy and guarantee the safety of back-row passengers.