This traffic card can be used within the distance of maximum 10cm above the antenna box of a card terminal so users don’t need to stop to process their traffic card. In addition, its size is same as that of the existing credit cards so users don’t need to take it out of their wallets to use. Data are encoded to prevent unlawful use. Each traffic card has a serial number in it so its soleness is guaranteed. This traffic card is suitable for the applications that require fast mass processing like transportation. This traffic card is a contactless type that does not need electric contact and mechanical drive so its lifetime and reliability are guaranteed. It is possible to conveniently pay a fare for various public transportations, such as a bus, a subway, or a taxi. It is not necessary to prepare coins or to purchase a ticket. Payment for the charges at parking lots and for the tolls for expressways and charged roads. E-payment of small amount at convenience store, other distribution shops, and vending machines. Management of membership for saunas, swimming pools, and theme parks; Management of employees’ arrival in office and departure; Management of customers; e-payment.