PURPOSE: A method for managing a vehicle through the Internet is provided to offer an efficient and economical maintenance service by managing accumulated vehicle and maintenance data using a card and grasping the maintenance details of the vehicle irrespective of place. CONSTITUTION: A member entrance application is written(10). A card is issued by the written member entrance application. The issued card is provided to a client(30). Card information is read by a card reader(40). A server transmits data through read card information(50). A customized service is provided by the transmitted data(60). The serviced result is inputted in a system(70).