The main aim of the present article is to introduce and sociological analyze of the aspects, components, functions and barriers of the Iranian public sphere. The theoretical framework of the paper is based on the theories of Aristotle, John Rawls, Charles Taylor, Hannah Arendt, Ulrich Rödle, Günter Frankenberg, Helmut Dubiel, Andrew Areto and John Cohen about the public sphere. Referring to contemporary historical studies and experimental data and statics, this article is written via library study. Results of this study show that there is public sphere in Iran and it makes from public places, real social spaces (domestic and foreign mass media and broadcasting), metaphorical spaces (internet and social networks), non-governmental organizations (NGOs) and social movements. Iranian public sphere has some weaknesses and limitations such as it is controlled by the government, it isn`t open for all social classes and different social groups, particularly women as fairly and equally, all the subjects aren`t designed, it`s so much monopoly and ideological. It doesn`t represent the Interests and the demands of a multicultural society of Iran and doesn' t reflect the voice of the people to the government and parliament. Despite the problems, the Iranian public sphere grows day by day and becomes more pluralistic and stronger. It grows in the qualitative and quantitative aspects and increases its role and importance for policy.