Socio-cultural diversity is a comprehensive phenomenon across the world so that there are only a few monoethnical countries. Every country attempts to plan its policy to manage its ethnical diversity on one hand according to goals and approaches of its political system and on the other hand according to its specific ethnical diversity pattern. The Islamic Republic of Iran also is among countries with ethnical diversity and attempts to administrate its policy according to its political system approach toward ethnical diversity and the features of that diversity. In this paper it was tried to represent some socio-cultural suggestions, employing the positive experiences of countries with ethnical diversity and regarding opportunity-based approach of the Islamic Republic of Iran toward ethnical diversity and recommendations of the leaders of the revolution. The research method used here is a combination of documentary method with studying of resources and available studies, formation of elites’ panel, interviewing with elites. Also Smith’s general policy making model was used in the process.