Iron Age is one of the key and important periods of the humankind evolutionary process in the world. This period is representative of crucial changes of human life. New citied were erected and urbanization took on a new dimension by large numbers of urban dwellings.  Social hierarchies were stabilized and new cultural traditions in human societies emerged by technological, industrial, literature and ideology. But the case in Iranian Plateau is not the same. No region in the Iranian Plateau had experienced an integrated power and literature except the Elamites, unlike neighboring regions such as Mesopotamia and Anatoly. While despite all these lacking and differences the region can’t be disregarded in figuring out the general overview of the Middle Eastern Iron Age puzzle. As the region’s specific geographical characteristics as well as its strategic position made it share an important part in the formation and replacement of the Iron Age cultures in the Middle East. In this regard studying the Iron Ages in Iran and their formation both from geographical and theoretical would be of great importance in knowing this period changes. However, because of geographical complexity of the western Iran knowing the Iron Age cultures, their emergence and develop is not complete and there are many theories on the issue. In order to explain the evolutionary process of the Iron Age societies in the region, this article aims to review and reevaluate the various theories on Iron Age emergence and development through western Iran and