Abstract: After a lot of site investigations and analyses,it is found that structural stability is the most important problems which threatened the earthen architecture site in the northwestern China.Some new materials and technologies,such as the soil anchor,the geofabric,the improved mud etc.,had been used for the emergency of reinforcing the southwestern big temple in ancient city of Gaochang.At some extent,these measures reach a goal of conservation of cultural property and protecting of the visitors.The experience may be beneficial to similar sprojects in the northwestern China.