A point management system has a game terminal mounted to a vehicle, a server including a point memory for storing user ID and the number of points, which are associated with one another, an authenticator for authenticating user ID inputted via the game terminal using the user ID stored in the point memory, a game controller for allowing the game terminal to execute a game when the authentication succeeds, and a point processor for updating the number of points associated with the user ID stored in the point memory in accordance with a result of game execution.