The actual conditions and issues of quality assurance of preservice teacher education in Japan were identified by analyzing trends in domestic studies of quality assurance. The evaluation system for future preservice teacher education was examined. Therefore, the following two results were identified: (1) Not only the development of agreed standards and the improvement of the curriculum were related to preservice teacher training, but the ways in which internal and external parties participate were also issues; (2) Collaboration between internal and external parties should be encouraged to promote autonomous quality assurance in Japan, where external institutions are slow to improve their system for assessing the quality of the university. In addition to these factors, it was suggested that investigation of quality assurance in private universities is also necessary because most previous studies and practices were implemented in public universities.