In this study, 15 teacher librarians working in the high school library were interviewed in order to understand the factors and situation of teacher librarian's job burnout. The results showed that job environment, teacher librarian's role and identity, school community members' lack of awareness of school library and teacher librarians were found to be influential factors in job burnout. In order to solve this problem, it is necessary to develop proper compensation system, to divide librarians and teacher librarians into clear jobs, to provide opportunities for the other teachers to extend their understanding of teacher librarians, and to provide opportunities for self development and recharging.