This article has briefly looked back on the past 60 years course of conservation of the Dunhuang Grottoes and has especially laid the emphasis on introducing the basic contents for the scientific conservation projects undertaken in the Dunhuang Grottoes which has been carried out since the end of 1970, this article has mentioned the main achievements in grotto conservation research and the conservation practices and its scientific effects attained in the Dunhuag Grottoes as the great site of Chinese cultural heritage. Here, this article is also introducing to the Dunhuang Academy who has produced significant results in conservation and research. through joint efforts and friendly cooperation with other Chinese and foreign scientific research organization.