Folk Literature (Folklore) of all nations is full of numerous epic, romantic and didactic stories in which heroes are mostly part of the plebs and the narrative line of these stories is very close to their life, style, aspirations and ideals. The story of Falaknaznameh and Koroğlu in Iranian and Azerbaijan folk literature have their origin in the relatively close culture and vision of two Iranian and Azeri nations. Due to numerous similarities, comparative study of these two stories in view of their narrative course, theme and events can open up new horizons before the the eyes of the readers that will make them familiar with the common intellectual ties, aspirations and hopes of the two nations. The results of the current study showed that the main characters of the two stories are the symbols of the virtue and righteousness. Among the key common features the main characters of these two stories one can refer to the promotion of justice, patriotism, liberalism, battle against feudals, battle against looters and plunderers, protection of the rights of the laity and keeping the company of the masses.
