A smart multi-card may include: a frame; a wireless communication unit configured to transmit or receive data to or from a card terminal or a communication device through wireless communication; an information storage unit configured to store card information relating to a plurality of cards; a user input unit configured to receive a user input from a user to select card information corresponding to one of the plurality of cards; a display unit configured to visually display the selected card information; and a processor configured to extract the card information selected by the user from the information storage unit, process the card information, deliver the processed card information to the display unit, and process the data transmitted or received through the wireless communication unit.