Vehicle height adjusting device and vehicle

The utility model relates to a vehicle height adjusting device and a vehicle, the vehicle height adjusting device comprises a driving part (11), a first transmission part (12) and a second transmission part (13), the first transmission part (12) and the second transmission part (13) are in transmission fit, the first transmission part (12) is used for being connected with the vehicle, and the second transmission part (13) is used for being arranged on a wheel (10); the driving part (11) is used for enabling the first transmission part (12) to move in the vertical direction relative to the second transmission part (13). The vehicle height adjusting device can solve the technical problem that the vehicle height cannot be adjusted.