Purpose: Social participation of university refers to the creation of knowledge and participatory processes with local communities in solving community problems in order to achieve sustainable development. Identifying the university's social participation strategies was the main purpose of the present study. Design/methodology/approach: In order to achieve this aim, the qualitative method was used. The study area is Semnan province and Semnan University. The statistical sample included two groups of internal beneficiaries of the university (including staff, deputies and faculty members of the university) and external beneficiaries of the university (including managers and experts of local organizations, education, province and municipality). The sampling was purposefully performed based on the theoretical saturation criterion, holding an interview with 29 participants. Data analysis was performed in three stages of open, axial and selective coding. Findings: The results of the research showed that the university can participate with its local community in developing the university vision according to the needs of the local community, holding workshops and scientific conferences, concluding joint research contracts, expert and researcher exchange, environmental leadership training, participatory management and teamwork, indigenous manpower, institutionalizing regional participation, solving community issues and problems, creating associations and non-governmental companies in the community, mission orientation, directing education and research towards solving problems and meeting the real needs of the province according to land management, supervising research activities, conducting comprehensive studies in the field of mineral potentials, organizing workshops for farmers' awareness, monitoring the employment of graduates, creating and developing new fields according to the needs of the province and region, educating citizens and cultural zing to reduce production and segregate household waste, opening the university's social space for the growth and supply of youth, educating the province's handicrafts to housewives, especially in the deprived areas, sensitizing programs in the field of environmental protection, and reviewing educational content based on the community needs. Originality/value: Biosocial and economic policy of universities was another result of the present study. The university intends to make citizens aware of social and environmental problems and to provide the necessary education in the fields of air pollution, soil salinity, drinking water supply, cultivation pattern refinement, agricultural mechanization, and waste and waste management. The university should also promote entrepreneurship among students and faculty members and attract economic resources to the university through innovation and commercialization circles, and develop the province's economic infrastructure in various fields of tourism, agriculture, industry and mining.