The purpose of this study was to find out how the leadership of superiors at the university library - transformational and transactional leadership - could affect the job satisfaction of subordinates. For this purpose, verification was performed with the subject of 155 librarians working at 11 university libraries in Busan. The following are the results of this study. 1) There was positive correlation between the leadership type of superiors and the job satisfaction of subordinates. Transformational leadership turned out to have higher correlation with job satisfaction than transactional leadership. 2) Intellectual stimulation·inspiration affects promotion practices and supervision style. 3) When analyzing the controlling effect of individual characteristics, only gender and marital status are used as a controlling variables between transformational leadership and job satisfaction