The utility model provides a vehicle and a wheel device of the vehicle. The wheel device comprises a rim, a tyre and a supporting ring, wherein the tyre is fixedly arranged on the outer circumferential surface of the rim in a sleeved mode, and the supporting ring is fixedly arranged on the outer circumferential surface of the rim in a sleeved mode and is located in an internal space formed by the rim and the tyre. Because the supporting ring is arranged on the outer circumferential surface of the rim in the tyre of the vehicle in the sleeved mode, when air pressure in the tyre is too small or the tyre bursts, supporting force can be provided for the vehicle by the supporting ring, the possibility that because the vehicle runs in a low-pressure state, oil consumption is increased and the service life of the tyre is shortened is reduced, and vehicle side overturning accidents caused by bursting of a tyre on one side of the vehicle are avoided.