The invention discloses a vehicle control method, a vehicle control system, a vehicle key, a vehicle, and a vehicle system. The method comprises: the vehicle key displays an interactive interface of a current function item on a display screen based on an operating instruction of a user, and a function list is set in the vehicle key, and comprises multiple function items and UUIDs (Universally Unique Identifiers) representing functions of the function items; in order to respond to a received control instruction sent by a user through the interactive interface of the current function item, the vehicle key generates a control request message and sends to the vehicle control system in communication connection with the vehicle key, so that the vehicle control system conveniently controls the vehicle to operate correspondingly based on the control request message, and the control message comprises the UUID representing the function of the current function item and the control instruction. According to the vehicle control method, the vehicle control system, the vehicle key, the vehicle, and the vehicle system provided by the invention, a remote control function of the vehicle key on the vehicle is enriched, the demand of the user on the remote control function of the vehicle under the overall background of mobile internet development can be met, and the user experience is improved.