Abstarct: The purpose of this study was to investigate the relationship between spiritual intelligence, identity styles and work involvement among sports volunteers in 13th Iranian universities sports cultural Olympiad. The method applied in this research was descxriptive-correlational. The research statistic population was consisted of all volunteers participating in 13th 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: spiritual intelligence (King,2008), identity styles (Berzonsky,1992), and work involvement (Lodahl and Kejner, 1965). Formal and content validity of the questionnaires were approved by experts. The reliability was obtained for Spiritual intelligence, Identity styles and Work involvement questionnaires using Cronbach’s alpha coefficient be respectively equaled 0/90, 0/75 and 0/71. 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.