Radio Frequency Identification (RFID) Government departments and enterprises in Taiwan apply RFID universally in the fields of animal microchip, door access management, Auto chip of anti-theft de-vice, MRT Easy Card, parking lot man-agement, anti-counterfeiting and material management, but the multifunctional in-telligent card with integration of RFID applications has not been developed so far. If we can develop a card with integration of the functions which are closely related to people's daily life such as ID card, NHI IC card, fingerprint, E-signature and E-commerce (E-wallet), it will not only save time and money spent on applying these cards for people, but also will lower the governmental ex-penditure and achieve the effect of energy saving and carbon reduction. The previous studies mostly explore the factors affecting the user’s intention and behavior of RFID use from the initial beliefs (ease-of-use and usefulness) and attitude. For example, to what extent the knowledge, belief, attitude, perceived value, it deserves further exploration. To resolve the above problems, this study out differences from Social cognitive theory, Innovation Diffusion theory and Expectation confirmation theory, and establishes the theory model of the user's intention and behavior of using RFID continuously, which is also verified in this paper.