Vehicle door system and vehicle

The utility model provides a vehicle door system and a vehicle. The vehicle door system comprises a first vehicle door installed on a vehicle body of a vehicle, an upper door lock assembly, a lower door lock assembly and a rotating piece. The upper door lock assembly comprises an upper auxiliary lock and an upper auxiliary lock catch, the upper auxiliary lock catch is arranged on the top of the automobile body, the upper auxiliary lock is arranged on the first automobile door, and when the first automobile door is located at the closed position, the upper auxiliary lock is locked on the upper auxiliary lock catch. The lower door lock assembly comprises a lower auxiliary lock and a lower auxiliary lock catch, the lower auxiliary lock catch is arranged at the bottom of the vehicle body, the lower auxiliary lock is arranged on the first vehicle door, and when the first vehicle door is located at the closed position, the lower auxiliary lock is locked to the lower auxiliary lock catch. The rotating part is instal