Main purpose of Nemiing Hurelleng found on November 9, 1921 at Mongolia was to collect references relating to history in Mongolia and Tibet. And the initial goal of Subicigiin Hureleng found on 1924 and became a base of the Mongolian National Academy, was to translate the literatures of Tripitaka, a Sanslait word which means Ghurwan aimagh sava or three kinds of bowls. They contain religion, philosophy, language, medical science, literary theory and astrology. Present study describes how lawadatndin et. al, translated the literatures. And then, it examines the translations from Sanslait and Tibet and establishment by Ts. Damdinsurung et. al. All references are also added at the end of study. Besides, it is stated and studied that Mongolian Buddhism is neither an imitation of Indian Buddhism nor import from Tibet; the Buddhism is tweborn Mongolian.