Dunhuang grotto art lasts from the Northern Liang Dynasty to the Yuan Dynasty built  by  the Mongolian, contains three aspects-the architectural shape, painted sculpture and fresco, and involves art, culture, nation, religion and politics, etc. It can be said as a giant history book. The book “Research on Dunhuang Grotto Temples” written by Mr. Ning Qiang introduces and researches the grotto art of Dunhuang comprehensively and systematically. The book has four characteristics: the introduction is comprehensive and systematic and has gotten the essence of Dunhuang grotto art; many of its views  are new and innovative; the discourse is rigorous; the wording is beautiful. The author clenches the “changeable” and “changeless” factors in each period of Dunhuang grotto art to grasp the essence of Dunhuang grotto art. The book not only has innovative arguments, full and accurate discourse, clear logic and graceful expression, but also is illustrated and beautifully printed, which is an excellent publication about the research on Dunhuang art in recent years.