In recent years, not only Japanese education, but also Psychology education focused on ”Teaching Practice Research”. In Taiwan higher education, when teacher want to promotion to the next level, the thesis that he wrote must to be related to the subject in his duty. So, we can see the importance of practice research from this point. However, neither the definition nor the publication standard of an academic journal is clear.Therefore, in this paper, we would like to propose the definition and its importance of teaching practice research from the arguments in the educational psychology field and the field of Japanese education.