The purposes of this study are to identify the various perception of educational technology and to analyze the differences in cognitions of practitioners in education field. First, 27 perceptions on educational technology were verified based on the previous research as well as interviews of educational technologists and practitioners. Second, the survey of 15 practitioners majoring in educational technology at graduate school of education was conducted in order to analyze the reason why they were studying educational technology. Third, as a result of comparing the 27 perceptions among 15 practitioners in education field, on the basis of Q method, the 15 practitioners were classified into three groups. Group 1 identified the educational technology as ‘high-tech studies satisfied on the social and technology change’. Group 2 identified the educational technology as ‘practical studies contributed to improvement of educational environment’. Group 3 identified the educational technology as ‘media centered studies influenced by practitioners' competencies’. Finally, some limitations of research are indicated and the educational technology needs to enforce the identification of studies and to develop the practical and elaborated theories.