The aim of this study is to determine the self-efficacy perceptions of special education teachers about the use of the Montessori method by a valid and reliable scale developed by the researcher. The model of the research is a general descriptive model of quantitative research methods. In the 2017-2018 academic year, 67 special education teachers who work under the Directorate of Primary Education of the Ministry of National Education of the Turkish Republic of Northern Cyprus are participated in this research universe, which comprise 29, 12, 20, 4 and 2 teachers from Special Education Application Centre, Special Education and Work Application Centre, primary schools, kindergartens and school for visually impaired, respectively. This study was conducted only with all the special education teachers in the universe not by any sampling method. The general proficiency perceptions of the special education teachers for the use of the Montessori method were at the level of instability. According to the general competency perceptions of the female teachers on the use of the Montessori method, it was found that their responses were more positive than the males.