Dajing Town was once a pearl on the ancient Silk Road and an important commodity distribution center in this area. Historically, it was one of the four famous towns in Gansu. During the period of Emperor Wu of the Han Dynasty, it was called "Park Ring", and its commercial activities were the most active. Businessmen in Shaanxi and Shanxi do have the saying that "if you want to make money, take a trip to Dajing Tumen". Therefore, the literati called Dajing the city of the third place, which reached its peak in the world. During the day, merchants gather, people come and go, and people are empty; At night, thousands of lights shine like a street in the sky. It is said that there is a plaque on the front door of the Forbidden City in Beijing. Therefore, Dajing is also called "Little Beijing", which is also the reason. Dajing Town is located 80 kilometers east of Gulang County, with Qilian Mountain in the south and Tengger Desert in the north. It is a typical agricultural market town, and it is the economic, cultural and commercial center of east Gulang County 12 towns.