The invention provides a vehicle machine, a vehicle and a vehicle machine customization method and system. The method is applied to the vehicle machine customization system., and the method comprisesthe following steps: receiving preset account login request information triggered by a user; logging in a preset account according to the preset account request information, and entering a configuration setting interface; sending configuration setting information triggered by a user on the configuration setting interface to an Internet of Vehicles platform; and performing update setting accordingto configuration update information returned after the Internet of Vehicles platform responds to the configuration setting information. According to the vehicle machine, the vehicle and the vehicle machine customization method and system provided by the invention, the user can customize the function of the vehicle machine after purchasing the vehicle, the personalized service of the vehicle machine is realized, and the user experience is improved.