Auxiliary frame assembly and vehicle

The utility model discloses an auxiliary frame assembly and a vehicle. The auxiliary frame assembly for fixing the stabilizer bar of the vehicle comprises an auxiliary frame body, a first cross beam and a second cross beam, wherein the auxiliary frame body is provided with a stabilizer bar mounting hole, a first cross beam and a second cross beam; the first cross beam and the second cross beam are arranged in a spaced mode in the front-back direction; the reinforcing ribs are connected to the first cross beam and the second cross beam of the auxiliary frame body; and at least part of the reinforcing piece is overlapped with the stabilizer bar mounting hole, and at least the other part of the reinforcing piece is overlapped with the reinforcing rib. According to the auxiliary frame assembly, the reinforcing ribs and the reinforcing pieces are arranged, so that the stability of the stabilizer bar fixed on the auxiliary frame is guaranteed, the structural strength of the auxiliary frame is enhanced, and the comf