Epics that belong to the Turkish tribes living in Siberia have an important place in terms of their number, content and motives among the Turkish epics. Moreover, these legends are highly rich in terms of the mythological elements that they carry. The relations of the heroes of the legends with underground world and the sky occupy an important place within this richness. The relations of the hero with Erlik and Ulgen deserve to be investigated as the reflections of the Turkish Shamanism over the folklore. Detailed descriptions of the underground world are especially recognized within these legends. The most distinguishing of these descriptions are the ones that are about the hell, those that suffer in hell and Erlik. The behaviors that are forbidden in earth are pointed out importantly in the descriptions that are especially about hell. The narrator gives suggestions to the listener by the legends even in an implied way. The hero that interacts with the identities of the underground world and the sky reaches to some conclusions. The hero receives a victory from the journey that he takes into the underground world and saves the people who are taken to the underground world in an unjust way. In this article; some determinations about the relations of the hero with underground world and the sky in Syberian Turkish legends are classified and evaluated.