The entrepreneurship literature shows that entrepreneurial intention has important effect on entrepreneurship behavior. Therefore, it is important to identify factors influencing entrepreneurial intention.The main purpose of this study was to investigate the relationship between self-efficacy belief and entrepreneurial intention with mediating role of entrepreneurial attitude. This study, in terms of purpose, is considered as an applied research and in terms of data collection is field study. The statistical population consisted of 2000 agricultural and natural resources students in 2013-2014 academic year, among which, 145 students were randomly selected based on Cochran's formula. Data collection tool was questionnaire, that’s face validity was confirmed by a panel of agricultural extension and education experts, and its reliability was confirmed through calculating ordinal alpha and composite reliability coefficients (a=0.702 - 0.906 and C=0.801 - 0.904). The results showed that there is a positive relationship between self-efficacy belief and entrepreneurial intention. Also, the mediating role of entrepreneurial attitude in the relationship between self efficacy belief and entrepreneurial intention was confirmed.