It is important to explain the scope of the concept of mentoring, which has been becoming increasingly important in training and supporting the professional development of educational administrators. In this context, the aim of this study is to examine the concept of mentoring, the functions of mentoring, and the studies carried out on the mentoring functions of school administrators in Turkey. For this purpose, the study was designed as a literature review, and the studies which were indexed in the TR index and Council of Higher Education Thesis Center between the years 2000 and 2020 were analyzed. As a result of the analysis, it was found out that there were 16 studies conducted on the mentoring roles of school administrators in Turkey, and they were carried out as graduate studies at Master's level. It was also concluded that the studies generally focused on the mentoring functions of the education administrators in public schools, the level of mentoring functions of the school administrators, and the correlation between the mentoring functions of the school administrators and the job satisfaction of the teachers and vice-principals, academic optimism, organizational adaptation, and professional development. As a result of the study, it may be suggested that more studies are needed for a better understanding of mentoring among the school principals in Turkey.