<p><em>Global competition requires organization to adapt to the ever-rapidly changing ways to do business in the global environment in order to keep survive. The success of the organization does not only depend on facility and infrastructure that is available but also on their employes performance. Therefore, an organization needs to realize how important the role of their employes for the triumph of the organization.</em></p><p><em> </em></p><p><em>The objective of this research is to find out the effect of job satisfaction and organization commitment to job performance through Organizational Citizenship Behaviour (OCB) as meditation variable.</em></p><p><em> </em></p><p><em>There were 131 respondents of employee participating Respondents in this study were only limited to level of the Staff (clerk) until the Department Head only.The additional information gathered through focus group discussion with Human Resources Managers. </em></p><p><em> </em></p><p><em>The summary of this research is there is effect of job satisfaction to job performance but not significant, there is effect of organization commitment to job performance but not significant, there is effect Organizational Citizenship Behaviour (OCB) to job performance, there is significant effect of job satisfaction to job performance through OCB as meditation variable and there is significant organization commitment to job performance through OCB as meditation variable.</em></p>