Abstarct:   Education is one of the important social institutions that plays the most important role in the economic, social, political and cultural progress of society. The realization of the goals of the education system is in the hands of each teacher, hence the importance and greatness of the role of teachers and trainers and their mental health play a significant role in human societies. Therefore, the present study was conducted with the aim of investigating the effect of social support on the mental health of physical education teachers with the mediating role of quality of working life. The method of the present research design is correlational and is part of applied research. The statistical population of this study included all physical education teachers in Golestan province in the academic year 1403-1404 and the sample size was 149 people. The research tools in this study included: a personal information questionnaire, a mental health questionnaire from Lutke et al. (2022), a social support questionnaire from Gary et al. (2020), and a quality of working life questionnaire from Ilgan et al. (2014). The raw data collected were analyzed using Smart-PLS3 and SPSS23 software. The results of the study showed that perceived social support and mental health have a positive and significant effect on the quality of work life of physical education teachers. Perceived social support with a path coefficient of (0.196) and a significance value of 18.2 has a positive and significant effect on the mental health of physical education teachers in Golestan province. Also, the effect of perceived social support with a path coefficient of (0.493) and a significance value of 94.7 has an effect on the quality of work life of physical education teachers in Golestan province. In addition, the quality of work life with a path coefficient of (0.454) and a significance value of 38.6 has an effect on the mental health of physical education teachers in Golestan province. Finally, the quality of work life with a path coefficient of (0.223) and a significance value of 512.5 has a mediating role in the relationship between perceived social support and the mental health of physical education teachers. That is, part or all of the effect between perceived social support and mental health of individuals depends on the presence of the variable of quality of work life. Considering the important and influential role of social support and quality of work life of physical education teachers, it is possible to help their mental health by adopting methods and increasing their coping skills in facing problems, which can effectively contribute to achieving the goals of the education system. Keywords: Psychological Well-being, Job Satisfaction, Organizational Psychology, Physical Education Teachers Shahrood University of Technology Faculty of Physical Education M.A. thesis in management of sports organizations and clubs By: Supervisor: Dr. Reza Andam July 2026