Objectives: The purpose of this study was to investigate the relationship between differentiation, quality of life and problem-solving strategies with student emotion regulation. Methodology of the research: This study was a correlational study. The statistical population of the study consisted of all female undergraduate students of Borujerd Islamic Azad University in the second semester of the academic year 1396/1395. There were 3196 people among who 100 students were selected by non-random sampling method and based on literature of the research; valid reseach methods book (Delavar, 2017). The questionnaires were completed. For measurement of the research variables, they used a self-differentiation questionnaire (2003), quality of life (World Health Organization, 1996), problem-solving (Hepner & Patterson, 1982) and emotion regulation (Grass & John, 2003) Was used. Data were analyzed using Kolmogorov-Smirnov test, Pearson correlation coefficient and multivariate regression. Results: The results of this study showed that regression of emotion re-evaluation component was significant with differentiation, problem solving and quality of life components. Also, the component reassessment component with trust component was a reverse and significant problem solving. Meanwhile, the relationship between re-evaluation component and quality of life components was significant. But the relationship between the components of emotion control and the differentiation was not significant. It was also found that the regression of the component of excitement suppression with the components of differentiation, problem solving and quality of life was not significant. Conclusion: Based on the findings of this study, it is concluded that the students' thrill adjustment especially the redevelopment component, differentiation, quality of life, and problem solving strategies play an important role.
