Abstract Purpose: Although, several studies have been conducted on the concept of organizational citizenship behavior (OCB) and its relationship with health promotion of the administrative system, organizational spirituality as a factor affecting organizational citizenship behavior has been less considered in organization and management literature in recent years. The study aimed to investigate the organizational citizenship behavior by health promotion of the administrative system, "issued by Supreme Leader", considering the mediating role of organizational spirituality to present a desirable pattern. Accordingly, while reviewing the theoretical literature, their respective variables and scale, the overall framework of the study was formed. Methodology: This is an applied study in terms of objective and descriptive-correlational in terms of nature. The statistical population of this study were all staff of state-owned organizations of Kerman province in 2016-17. Sampling was done by two-stage cluster sampling method. Organizational citizenship behavior inventory 0.77 and organizational health 0.73 and organizational spirituality 0.90 were used to collect data. For analyzing the data, descriptive and inferential statistics (correlation test and structural equation modeling) were used and data were analyzed using SPSS and AMOS. Findings: The results showed that the interpersonal citizenship performance model, job citizenship performance, organizational citizenship performance, and the health promotion of the administrative system, "issued by the Supreme Leader", have a goodness of fit given the mediating role of organizational spirituality. Discussion: One of the areas of management that can have a great deal of spirituality is organizational citizenship behavior management whose purpose is to help change the behavior of individuals in the organization and thereby achieve operational goals in an efficient and fast way.
