The invention provides a vehicle gear switching method and device. The vehicle gear switching method comprises the steps that gear switching information is obtained; whether the gear switching information is parking gear relevant information or not is judged; whether faults occur in an operating state of an electronic element corresponding to the gear switching information or not is judged according to a judging result; and a gear of a vehicle are switched according to the gear switching information and the operating state of the electronic element corresponding to the gear switching information. According to the vehicle gear switching method and device, whether the gear needed to be switched of the vehicle is related to a parking gear or not is judged through the gear switching information, whether the faults occur in the corresponding electronic element or not is judged according to the judging result, so that the situation that safety accidents caused by the switched gear due to thefact that the faults occur in the electronic element of the switched gear in the process of switching the gear is avoided, the safety of the switched gear is improved, and the flexibility of the switched gear is improved.