The work was completed over a period stretching from the Northern Liang of the Five Dynasties period to the Sung dynasty. It is the largest discovery of Buddhist caves in modern times with the longest history.
完成時間遠溯自五胡十六國時代的北涼，直到宋朝，是現今世界已發現規模最大、歷史最久的佛窟群。