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The purpose of this study was to investigate the role of spiritual intelligence and identity styles on work involvement among sports volunteers in 13^th Iranian universities sports cultural Olympiad. The method applied in this research was descriptive-correlational. The research statistic population was consisted of all volunteers participating in 13^th Sports cultural Olympiad. The sample was equal with the population due to the restricted number of population (n=N). The data were gathered by three questionnaires: King's spiritual intelligence (2008), Berzonsky's identity styles (1992), and work involvement of Lodahl and Kejner (1965). Pearson correlation and structural equation modeling were used to analyze the data. The results showed that spiritual intelligence has a positive and direct effect on identity styles and identity styles has direct and significant effect on work involvement. Also, the research findings indicated that spiritual intelligence has positively and indirectly effect on work involvement by mediating of identity styles.Therefore, spiritual intelligence improvement can increase work involvement of sport volunteers through improvement in identity items; so if managers pay attention to these items at the time of attracting volunteers, they can design better training programs and increase volunteers’ dependence on the environment. In this way, they can change temporary and event volunteers to permanent and traditional volunteers.