An important task in Information Systems research is to understand factors that influence the continuous use of information technology (IT). This study extends the literature by conceptualizing a construct called IT attachment to explain the phenomenon. Drawing upon the attachment theory in developmental and social psychology, it suggests that IT attachment, defined as an affective bond of the IT users to IT, is a determinant of the users’ satisfaction with IT and its continuance intention. Factors that influence the development of IT attachment are also analyzed, including IT confirmation, perceived usefulness, perceived ease of use, and IT playfulness.