The main purpose of this research is to adapt an instrument that will help to determine pre-service teachers’ beliefs into Turkish. In the study, pre-service teachers’ epistemological beliefs, relationships among these beliefs, and whether epistemological beliefs differ based on gender, department they study, class levels. The study group included a total of 341 students from anakkale Onsekiz Mart University Faculty of Education and Institute of Social Sciences. For the validity of the instrument, both exploratory and confirmatory factor analyseswere used. In addition to descriptive statistics, correlations, reliability analyses, t-tests, ANOVAs were used. Findings indicated that pre-service teachers’ epistemological beliefs differed based on gender, department they study, class levels and there were significant relationships among the beliefs.