Mythological and epic image of the dog – one of the basic zoomorphic uliger characters acting as friend, grateful assistant, protector and savior of the hero is considered in the article on the basis of folklore material – plots of Buryat heroic epos (uligers). Stories about the dog are most frequently encountered in Ekhirit-Bulagat Buryat epic tradition preserved many archaic traits in its structure. The origins of this image go back to ancient beliefs, views of the people, where the dog is one of the most important cult animal. In the old days it enjoyed great respect and reverence, killing her was considered a grave sin. There was the belief about resettlement of souls of the ancestors in a dog. In traditional culture of Buryats this character appears as a sacralized animals associated with the cult of the ancestors, whose function is to protect and guard of the man and his property.
Key words: Buryat heroic epos, ekhirit-bulagat epic tradition, a reflection of the cult of the dog, zoomorphic characters – epic hero’s friends and patrons, a reflection of ancient ideas and beliefs in the buryat epos.