With regard to the foreign policy of looking to the East, competing with the West and communicating with third world and developing countries, Iran is always interested in participating and being a member of regional and extra-regional organizations that the political system is not pessimistic about and that do not conflict with the principles of the Islamic Revolution. An opportunity is welcome. Using the theories of realism about the role, position and purpose of establishing international institutions and organizations, the present essay analyzes the structure, nature and position of the BRICS extra-regional group and analyzes Iran's membership in the BRICS group. The question of the current research is, what effects and consequences will Iran's membership in the BRICS group have for this country? According to the realist point of view, it is evident that BRICS is a balancing tool for China against American hegemony, but the Islamic Republic of Iran, by being a member of BRICS and accompanying the hegemony of China (and Russia) as a desirable partner against the dominant hegemony (America) while accompanying China in confronting the threat of American hegemony and the creation of a multipolar system, there are other benefits such as the development of relations with the South from East Asia to Africa and South America, the development of trade and regional exchanges (South), the development of civil and economic infrastructures , attracting foreign capital, energy exchanges and oil sales, lifting and neutralizing sanctions, and finally turning Abran into an international highway will benefit.