Saddam`s fall in 2003 and appearance of new political structure in Iraq prepared important opportunity for IRI to influence human societies, particularly Shi`ites and support ideals of IR in regional problems. Such been the case, the paper tries to explain the how of Iraq new changes` effect on Iran`s power and influence and answer the question: what may be considered as the effect of Iraq`s new political structure on IRI`s regional power? As is explained in the paper, following Saddam`s fall and Shiite state of becoming geopolitical, IRI and IR`s place, more particularly in political, social, media and cultural point of view, has been considerably ascended and, thereof, it been able to play better than before.