Introduction to the Tianti Mountain Grottoes Exhibition Hall: In 1958, due to the construction of the Huangyang River Reservoir near the grottoes, the Gansu Provincial Government decided to relocate and protect some cultural relics in the caves. In addition to the Big Buddha Grottoes, there were also small caves tens of meters above the surface. The 49 statues, more than 100 square meters of murals and 25 boxes of fragments inside were moved to the Provincial Museum for preservation. In the following decades, since the actual water storage height of the reservoir did not pose a threat to the cultural relics in the small cave, in 1992, the State Administration of Cultural Heritage hosted an expert group meeting and after demonstration, according to the immovable cultural relics, they should be kept in their original location as much as possible. In accordance with the principle of protection, it was approved to restore the Tiantishan Grottoes cultural relics at their original site and in situ. In 1993, the Provincial Museum reached an agreement with Wuwei City and Liangzhou District on the transfer of cultural relics from the Tianti Mountain Grottoes. Since then, Wuwei City has invested more than 6 million yuan in repairing the anti-seepage cofferdam of the Great Buddha Grottoes, building the Tianti Mountain Grottoes Exhibition Hall, and carrying out environmental improvements. After the Provincial Museum returned a total of 579 cultural relics to Wuwei, all cultural relics They are all on display at the original site of Tiantishan Grottoes.