Market and social developments are influenced by sustainable entrepreneurship and universities are constructive in creating sustainable entrepreneurship for social and economic development by developing competencies. The purpose of this article is to investigate the modeling of competence development on sustainable entrepreneurial intention with the mediation of students' entrepreneurial orientation. The present study was a correlational study, and its research population was the graduate students of Sistan and Baluchistan University in 2023, and the number of samples was selected according to stratified random sampling of 293 people. The research tool included three questionnaires: sustainable entrepreneurial intention, entrepreneurial competency development, and entrepreneurial orientation, and the validity and reliability of all three tools were reported according to appropriate analysis. The analysis method was according to Lisrel 10 software and structural equation modeling. The finding showed that the development of entrepreneurial competence was directly indirectly effective on the formation of sustainable entrepreneurial intention. On the other hand, competency development had a direct effect on entrepreneurial orientation. Also, entrepreneurial orientation was effective on the formation of sustainable entrepreneurial intention. It can be said in result that the social and environmental sustainability of entrepreneurship are influenced by the development of competencies. and the development of entrepreneurial competence has a constructive role on creativity, innovation, activeness and risk-taking. and the improvement of entrepreneurial orientation of students is influenced by the increase of entrepreneurial competences.