英国国家图书馆藏S.6878V是唯一一件涉及出行占、婚嫁占及失物占的敦煌藏文术数文献,其中《金龟择吉占走失法》完整记录了利用乌龟推求失物的占法与卜辞,是由曹氏归义军时期寓居敦煌的吐蕃移民根据汉文术数书《推神龟走失法》编译而成。S.6878V《金龟择吉占走失法》的揭出,弥补了相关敦煌汉文文献的缺陷和不足,再现了唐宋时代龟占图文的完整样貌,并为推进唐宋汉、藏文化交流史与西北吐蕃移民社会史研究提供了珍贵一手资料。 The National Library of Sultang S.6878V is the only Dunhuang Tibetan literary genre involved in travel, marriages and lost property, of which the “Golden Tortoise and the Geisha” It was compiled by the Tibetan immigrants who resided in Dunhuang during the period of Cao Gui-yi-jun’s army based on the Chinese literary book Tuishou turtle lost law. S.6878V “Golden Tortoise Kat taken away law” of the exposed, make up for the relevant Dunhuang Chinese literature of the shortcomings and deficiencies, reproduce the Tang and Song dynasties tortoise accounted for the full appearance of the text, and to promote Tang and Song Han, Tibetan cultural exchange history And Northwestern Tubo immigrants social history research provides a valuable first-hand information.