The aim of this research is to determine the moral maturity levels of the Imam Hatip High School students. It is also to analyze whether the level of moral maturity differs according to gender, class level and place they stayed. The study was carried out on 220 students of the Imam Hatip High School in the district of Ortakoy in Aksaray in the academic year 2016-2017. The study is a descriptive screening model. The "Moral Maturity Scale" developed by Sengün and Kaya (2007) and the "personal information form" created by the researcher were used as data collection tools in the study. Scale is a likert type measure of 66 items. The reliability of the scale is 0.89. As a result of the study, it was determined that 55 % of the Imam Hatip High School students had a moral maturity level above the average. In addition, gender, class level, and place they stayed did not make a significant difference on the level of moral maturity.