Cave introduction: Grotto art is a kind of religious culture, based on Buddhist stories. It flourished in the Wei and Jin Dynasties and flourished in the Sui and Tang Dynasties. It absorbs the essence of Indian Gandhara art, integrates the traditional techniques and aesthetic tastes of Chinese painting and sculpture, reflects Buddhist thought and its sinicization process, and is an important tool for studying the history of Chinese society, Buddhism, art and cultural exchanges between China and foreign countries. Precious information.