Vehicle Control Method and Vehicle Control System

An embodiment vehicle control system includes a drinking measurement terminal provided in a vehicle, a user terminal including a photographing unit, and a server configured to determine whether to approve a key authority for the vehicle to a user based on a facial image of the user, in response to a key authority request for the vehicle and the facial image of the user being received from the user terminal, generate a door control signal for the vehicle based on whether the key authority for the user has been approved, determine whether the user meets driving suitability requirements based on a drinking measurement result provided by the drinking measurement terminal and the facial image of the user received from the user terminal, and generate a driving control signal based on whether the user meets the driving suitability requirements.