The purpose of this study is to determine teachers' attitudes towards creative drama before and after creative drama practice, the levels of self-efficacy in using creative drama method and the difference between them by enabling in-service teachers to learn how to use creative drama as a teaching method through activities. In that regard, "Single Group Pretest-Posttest Model" was used as an experimental design in the study. A four-day creative drama training was given to 21 teachers from a variety of disciplines in the province of Rize, Turkey, which took 24 hours in total. A creative drama attitude scale created by Okvuran (2000) and self-efficacy towards using creative drama method scale created by Can & Cantilrk-Gtinhan (2009) were used as pre- and post-test. Data were analyzed by using paired and non-paired samples t-test. Analyses were conducted using SPSS 24 package program. In this way, it was found that there was a significant positive effect of the creative drama activities on the teachers' attitudes towards creative drama and their self-efficacy towards using creative drama. There was no significant effect of gender neither on attitudes towards creative drama and self-efficacy towards using creative drama.