The main purpose of this study was to investigate the role of social capital in the motivation of students for job creation. The statistical population of this study included all students of Islamic Azad University of Karaj (N=3200) that 178 cases of these students were selected as research samples according to the Cochran formula. Data were collected by using a regulated questionnaire whose content validity was approved by faculty members of Agricultural development and management of University of Tehran. Social capital was measured in the form of four components including social confidence, social coherence, social communication and social participation. In addition, five items were used to measure students' motivation for job creation. To determine the re- liability of measuring instruments after the pretest (30 people), Cronbach's alpha coefficient was determined that its rate for variables of job creation motivation, social coherence, social participation, social communication and social confidence was 0.73, 0.76, 0.69, 0.71 and 0.72, respectively. Decision tree was used as the analysis techniques to study role of social capital in the motivation of job creation and results showed students who were more moderate in terms of social capital, had more motivation for job creation.