The present article addresses the significant role of media as a part of social, political and cultural structure in society and as the most important communicational bridge to influence public opinions–particularly the recent presidential elections, the subject of the article. It attempts to answer the two important following questions: a) what is the effect of media on electoral behavior? b) In what way/ways media could influence public opinions? The methodology used in the study is based on discourse analysis. Theories and viewpoints addressed in the article include media limited influence, satisfaction of the media, injecting, and highlighting techniques. The article also points to the media direct propaganda in Iranian elections after 1979 Islamic Revolution. Other points of focus in this article include the power of all kinds of media (television, radio, press, journals and internet) in terms of influencing people, their functions in elections, and the level they influence public opinions. The findings show that, since today media are indivisible part of people lives–so much so that they are accessible and widespread everywhere– they are decisive and effective in shaping electoral and political behaviors of individuals. Furthermore, given the constructive functions of media in communities’ political developments, we should adopt proper strategies and policies in reinforcing Islamic-local culture transactions and improving citizens’ electoral behavior, and pass down political development in the electoral behavior to the future generations.