The aim of this paper is to clarify the abilities essential to the senior teachers who have mentorship and the teacher training system for empowering mentorship, based on programs provided by National Institute of Education (NIE) in Singapore. For achieving it, we had an interview with the faculty and students at NIE, and then corded theses texts as well as handbook, which was published for participants of Teacher Leader Programme 1 (TLP1). The results showed that TLP1 dealt the following four abilities. (1) acquiring coaching skills for delivering the educational theory and pedagogy to novice teachers, (2) understanding the educational theory and pedagogy to be delivered, (3) supervising the novice teachers by applying these skills and knowledge, and (4) growing oneself as classroom teacher and mentor. This program was significant because it intended to empower the novice teacher by empowering the senior teacher who could train them intentionally.