The application relates to the technical field of vehicle body arrangement, in particular to a floor
assembly and a vehicle. The floor
assembly comprises a first longitudinal beam, a second longitudinal beam, a first cross beam, a second cross beam, a first reinforcing cross beam, a first reinforcing longitudinal beam, a second reinforcing longitudinal beam, a first floor and a second floor. The first longitudinal beam and the second longitudinal beam are arranged side by side along a first direction. The second cross beam, the first reinforcing cross beam and the second reinforcing cross beam are connected to the first longitudinal beam and the second longitudinal beam. The first cross beam, the first longitudinal beam, the second cross beam and the second longitudinal beam form a first cavity, the first floor covers the first cavity, the second cross beam, the first longitudinal beam and the second longitudinal beam form a second cavity, and the second floor covers the second cavity. One end of the first reinforcing longitudinal beam and one end of the second reinforcing longitudinal beam are connected to the first reinforcing cross beam, and the other end of the first reinforcing longitudinal beam and the other end of the second reinforcing longitudinal beam extend to the side of the second floor away from the first cross beam. The floor
assembly can improve the deformation resistance.