Shandan County, belonging to Zhangye City, Gansu Province, is located in the central part of the Hexi Corridor, which is the eastern gate of Jin Zhangye, the Pearl on the Seaside and the Silk Road town. It is adjacent to Yongchang in the east, Qinghai in the south, and Alashan Right Banner of Inner Mongolia in the north, with a length of 148 kilometers from north to south, and a width of 89 kilometers from east to west, with a total area of 5402.43 square kilometers. According to the seventh census data, as of 00:00 on November 1, 2020, the resident population of Shandan County was 150031 people. Shandan County is 1550-4441 meters above sea level, with terrain surrounded by mountains on three sides, high in the southeast and low in the northwest, with a continental alpine semi-arid climate. The economy of Shandan County is dominated by agriculture and animal husbandry, with 857,000 acres of arable land and 460,000 acres of perennial cultivation. It is a semi-agricultural and semi-livestock county. Shandan has the largest military horse farm in Asia, Shandan Military Horse Farm, Shandan Military Horse Farm has become the location of many movies. The Ming Great Wall in Shandan is the most well-preserved Ming Dynasty Great Wall in China.On October 10, 2018, the Gansu provincial government approved the exit of Shandan County from the poverty-stricken county. In 2022, the GDP of Shandan County will reach 8.022 billion yuan, an increase of 6%, and the GDP per capita will be 53,983 yuan.