The aim of this study is to adapt the discipline efficacy scale to Turkish language, and conduct the validity and reliability analysis of the adapted scale. The scale was applied to 157 teacher candidates. Exploratory and confirmatory factor analyses were conducted to reveal the construct validity of the scale. The results of the exploratory factor analysis indicated that the scale was composed of two dimensions, namely, Personal discipline efficacy and Teaching discipline efficacy. The results obtained through the confirmatory factor analysis appeared to confirm the factorial structure of the discipline efficacy scale. The scale includes 10 items. While the Cronbach's Alpha reliability coefficient was determined as 0.88 for the overall of the scale, for the Personal discipline efficacy on discipline, it was determined as 0.75 and for the Teaching discipline efficacy dimension as 0.78. The results of the adaptation of the scale to Turkish, validity and the reliability analyses indicated that the scale could be used in Turkish contexts.