This research was conducted with the aim of investigating the impact of ethical leadership dimensions on the organizational commitment of employees in the General Post Office of Kohgiluyeh and Boyer Ahmad provinces and the post office of Yasouj city. The research method is descriptive and correlational, and the library method was used to develop the theoretical framework of the research. The statistical population of this research is the employees of the General Post Office of Kohgiluyeh and Boyer Ahmad provinces and the postal districts of Yasuja, which number 430 people. The sample size of 203 people was determined, and 191 questionnaires were analyzed among the distributed questionnaires. In this research, Allen and Mayer's standard organizational commitment questionnaire and researcher-made moral leadership questionnaire were used. The reliability of the ethical leadership questionnaire was calculated as 0.811 and its content validity was also confirmed. The results of the descriptive analysis of the data state that the organizational commitment index and its dimensions, as well as the moral leadership index and its dimensions among the employees of the General Post Office of Kohgiluyeh and Boyer Ahmad provinces and the 4 post districts of Yasuj city are above average. The results of the inferential analysis and the test of research hypotheses state that there is a direct and meaningful relationship between ethical leadership (ethical person dimension, ethical manager dimension) and organizational commitment (emotional and normative). Although the aforementioned relationships are not strong, the results of the regression models predict well the amount of changes in organizational commitment (emotional and normative) by the ethical leadership variable (ethical person dimension, ethical manager dimension). Although there was no relationship between ethical leadership (the ethical person dimension, the ethical manager dimension) and organizational commitment (continuous), but the results of this research have a good overlap with the results of other researches in the field of ethical leadership and the effectiveness of organizational commitment. The effect of background variables including gender, education, age, history of activity and field of activity on attitudes towards ethical leadership and organizational commitment indicators was not confirmed.