Around the historic period of Tibetan make an invasion upon Dunhuang(A.D.781-848),Vajacchedikā-prajňāramitā,which was a Buddhist scripture of the primary importance especially worshiped by the Zen sect,has become very popular in Dunhuang area following the full-development and expansion of the Zen sect,therefore,there were the illustrations to Vajacchedikā-prajňāramitā rightfully appeared inside the Dunhuang Grottoes.This article tries to discussing the reason of popularity of the illustrations to Vajacchedikā-prajňāramitā in Dunhuang during the definite period of the Mid-Tang and The Later-Tang Dynasty(A.D.781-910)while tries to verification the presentations of contents of Vajacchedikā-prajňāramitā by investigation on the site of Dunhuang Grottoes at the same time.
