Abstract: The subject of this research is the repertoire of the white shaman I. A. Suzdalov-Sapalay. The object of this research is his shamanic rituals. Chronologically, the study covers the first half of the XX century. Methodological framework is comprised of the empirical method of description; general logical method of analysis by chronological principle; synthesis of the rites as a part of Aiy rituals. The method of synthesis, analysis and description of shamanic rites reveal certain pages of the ancient religious beliefs of the ancestors of Sakha people. The article examines the repertoire of shaman Sapalay – Ivan Andreevich Suzdalov, born in Abyysky District of the Sakha Republic (Yakutia). The authors introduce into the scientific discourse the unique materials on Yakut shamanism. A detailed description is given to the rituals of the last Aiy shaman (white shaman) I. A. Suzdalov-Sapalay, docymented by the folklorists-collectors. The heritage of Ivan Andreevich Suzdalov-Sapalay reveals new nuances of the forgotten early religious beliefs of the Yakut people. His description of the rites gives representation on the worldview, faith, afterlife, three souls of human being, and rituals of the Yakut people.