Personality and personality characteristics have always been considered by researchers and theoreticians of the behavioral sciences as a factor influencing human's implicit and explicit behaviors. Current research was administered with the aim of analysis of the role of proactive personality on the relationship between spiritual capital and transcendental spiritual well being. The research method is correlation and the statistical population comprised employees of two industrial companies in Isfahan city, among them two hundred and seventy seven persons were selected by quota sampling. Research instruments were the spiritual capital questionnaire, transcendental spiritual well being questionnaire and proactive personality questionnaire. Data were analyzed using hierarchical regression analysis. Results indicated that, there is a positive and significant relationship between proactive personality and spiritual capital and between spiritual capital and transcendental spiritual well being. Also the results of hierarchical regression analysis revealed that proactive personality moderates the relationship of two dimensions of spiritual capital, that is spiritual valuation and transcendental relationship with God and transcendental spiritual well being. The results of this study indicated that the proactive personality is an important factor in the relationship between spiritual capital and transcendental spiritual well being
