Vehicle body structure and vehicle

The utility model discloses a vehicle body structure and a vehicle. The vehicle body structure comprises a setting installation part which is suitable for being connected with the battery pack in a sealed mode. The vehicle body structure comprises a longitudinal beam integrated part and a lower cross beam, and the longitudinal beam integrated part is connected with the lower cross beam and provided with a set installation part. At least one of the longitudinal beam integrated part and the lower cross beam is of an integrally-formed structure. According to the vehicle body structure, the lower cross beam and the longitudinal beam integration piece jointly form the set installation part, the set installation part can be connected with the battery pack in a sealed mode, the integrally-formed longitudinal beam integration piece and/or the lower cross beam can obtain a better sealing effect with the battery pack, and therefore foreign matter of the vehicle body or the battery pack is prevented from entering a passenger compartment.