This article believes that the beginning of construction Maiji Mountain Grottoes as a Buddhist worship site must be the time round the great event of ’restoration on Buddhism as State Established Religion’ by the Emperor Wen Cheng Di of the Northern Wei Dynasty, the conclusion draws from the facts showed by the archaeological method in type the earliest caves into group and made comparative study to other types of representative grottoes dating from the Northern Dynasties. Further more, this article had put forwards a unique opinion of understanding on the origin source of Buddhist sculptures in the early period grottoes.
