The paper discusses the issues of sources, methods, and conditions of the formation of students' skills in the vocational training led to the entrepreneurial behavior of graduates. It is based on the work of the students' creative workshop "Geo-S" within engineering geodesy university course. We proposed that the formation of entrepreneurial skills carry out as part of entrepreneurial self-efficacy development with deferred entrepreneurial intentions. Experimental part included pilot surveys, case study method through in-depth interviews with workshops' members, and self-assessment survey to determine the significant events of the workshop. We constructed the model of skills formatting for entrepreneurial behavior of future engineers within students' creative workshop based on vocational training courses where the next components for entrepreneurial self-efficacy are most crucial: proactiveness, competitiveness, learning orientation, teamwork, product development, leadership, creativity.