The purpose of this study was to investigate the relationship between managers' ethical leadership on self-efficacy of physical education teachers in Tabadekan region of Mashhad. This study is practical and of descriptive-correlational type. The statistical population of this study is all primary education teachers (60 men and 50 women) working in the primary education schools of the Tabadekan district of Mashhad in the year 1397, A total of 761 people were selected in the whole counting manner. The data were collected using Moral Leadership Questionnaire (Brown et al., 2005) and Self-Efficacy Questionnaire (Sherer et al.,1982). The validity of the questionnaire was improved by obtaining the advice from faculty members specializing in this field and reliability of the questionnaire was confirmed using the Cronbach's alpha coefficient. To analyze the data, descriptive statistics were used and in order to test the hypotheses, the Kolmogorov-Smirnov-tests, single sample, Friedman, Pearson correlation coefficient, regression concurrently and Bootstrap test were used to study the model of relationship between the main variables of the research. The results of the research show that the ethical leadership of managers affects teachers' self-efficacy. Generally, the results show that the structure of the research model is very well suited; also the ethical leadership of managers predicts teacher selfefficacy. The conclusion demonstrate that managers must put ethical leadership as their primary priority in achieving teachers' quality and success.