This paper focuses on Japanese teachers’ evaluation of the teacher license renewal system and its influencing factors. Since the implementation of the teacher license renewal system, few researches have empirically examined the external evaluation and issues concerning this system. In particular, there is almost no research that evaluates the system from teachers’ viewpoint. Therefore, this study conducted a questionnaire survey at University B, where lectures on renewal system of teachers’ license were held. Using multiple regression analysis, we reached the following conclusions. First, approximately 60% of the teachers are opposed to the renewal system considering the reform unnecessary, whereas 40% support the system. Second, we clarified that teachers’ evaluation of the renewal system is based on two factors: burden and usefulness. Third, we found that the teachers aged 30 to 39 years felt more burdened with the renewal system than teachers of other age groups. Besides, there were teachers who were dissatisfied with this profession and felt busy with further education and trivial matters in the daily work. Lastly, considering the usefulness factor, there are four types of teachers: 1) teachers who have not yet entered graduate school, 2) teachers who want to acquire the ability of practical guidance and information utilization, 3) teachers who think that “teachers should be dedicated to children” and “teachers are kind of professionals.” Based on these findings, this paper makes suggestions for the reform of teacher license renewal system.