Organizational behavior is a refl ection of the attitudes and behaviors of employees who believed based on the perception of the individual to improve their performance. The purpose of study will describe the infl uence of organization-based self-esteem (OBSE) on organizational citizenship behavior (OCB) mediated self effi cacy. The research was quantitative methode and to collect data using instruments measuring instrument adapted from self-effi cacy (Bandura, 1997), OBSE (Pierce, Gardner, Cummings, & Dunham, 1989, 1993 and OCB (Williams & Anderson, 1991