Luristan is located in the Central Zagros Chains and it plays an important role in the events of the first millennium BC. Therefore, archeological and historical studies of this region lead to a better understanding of the events and the role of Lorestan in this period. The purpose of this research is to investigate the role of Lorestan in the first millennium BC based on historical and archeological sources. This research was done with a descriptive-analytical method with a historical approach. The Results show According to the Assyrian documents, Greek and Roman sources an ethnic group lived in the Zagros Mountains. Their land more probably was bigger than the administrative borders of Lruistan. Presumably, it should be somewhere between the Greater Media and Susa or Chaospes River. Luri is the common language of these peoples in this area.
