At the higher education level, the role and identity of the music teacher change with the teaching form and teaching method. Although teachers' give more targeted advice to students according to their needs in the individual lessons, students' learning may lack the collaborative ability for group learning. Therefore, this research will explore the teacher's role and discuss, compare the role of music teachers in group and individual lessons, as well as the teaching strategies or reflections they adopt in different situations.By analyzing the role of music teachers in individual and group lessons, the application of teaching strategies of teachers in individual and group lessons is investigated, and the learning model of group lessons can be used as a supplement to individual lessons. The result shows that teacher role are dynamic. In individual and group teaching, the role of the teacher is a relationship that moves back and forth between musicians and teachers. The teacher's role in the teaching process and the methods used are interrelated to the learning experience of the students and their development. Therefore, it is necessary for the teacher to constantly reflect, evaluate and learn together with the students in the teaching process.