Tehran University of Medical Sciences International Journal of Occupational Hygiene 2008-5109 10 4 2018 12 24 191 198 Tayebe Rahimi Pordanjani Department of Psychology, Faculty of Humanities, University of Bojnord, Bojnord, Iran Ali Mohamadzade Ebrahimi Department of Psychology, Faculty of Humanities, University of Bojnord, Bojnord, Iran 2018 12 06 2020 04 02 This study was aimed to investigate the moderator role of psychological capital relationships between occupational stress and work-life quality. In this cross-sectional study, the population were selected among all faculty members at the University of Bojnord. One-hundred and fifty faculty members were selected as samples. The study questionnaires were included occupational stress, psychological capital and work-life quality. The multiple regression analysis was examined research’s hypothesis using SPSS software version 22. According to findings, the correlation coefficients between occupational stress and work-life quality (r=-0.595, p<0.0001) and between psychological capital and work-life quality (r=0.421, p<0.0001) which all were statistically significant. The interaction of occupational stress and psychological capital, beyond effects of the main variables, created 2.8% of the increased variance for the model which indicates these variables have a meaningful interaction with each other in predicting of work-life quality  (ΔR2=0.028, ΔF= 6.15, p< 0.02). The results showed the importance of psychological capitals moderator relationships between occupational stress and work-life quality among the faculty members. Therefore, in order to reduce the effects of occupational stress on work-life quality, it is recommended that universities enhance psychological capital of faculty members through practical training protocols. https://ijoh.tums.ac.ir/index.php/ijoh/article/view/380 https://ijoh.tums.ac.ir/index.php/ijoh/article/download/380/545