Yuncheng City, abbreviated as "YUN", the ancient name of Hedong, also known as Phoenix City, Shanxi Province, prefecture-level city, located in southwestern Shanxi, north of Lvliang Mountain and Linfen border, east of Zhongtiao Mountain and Jincheng adjacent to the west and south, respectively, and Weinan in Shaanxi Province, Henan Province, Sanmenxia across the Yellow River, between the longitude of 110 ° 15 '- 112 ° 04', north latitude 34 ° 35 '- 35 ° 49' between, east-west length 201.87 km, north-south width 127.47 km, a total area of 14182 square kilometers. 112°04' east longitude and 34°35'-35°49' north latitude, with an east-west length of 201.87 kilometers, a north-south width of 127.47 kilometers, and a total area of 14,182 square kilometers. As of October 2022, Yuncheng City has 1 city district, 2 county-level cities, and 10 counties. As of the end of 2022, the resident population of Yuncheng City was 4,718,500 people. Yuncheng, known as "Hedong" in ancient times and named after the "City of Salt Transportation", is one of the important birthplaces of Chinese civilization. The Chinese nation's founder of the Yellow Emperor, Emperor Yan, Chi You, Yao, Shun, Yu, are successively active in the Hedong land. Yao first Pu Ban, later moved to Pingyang, Shun Pu Ban, Yudu Anyi, China's first slave society - Xia was born here. The fossil of the "Chinese Century Ape" in Yuanqu County, Yuncheng City, pushed the origin of mankind forward by more than 10 million years. The Xihoudu Culture Site in Richeng County is the earliest evidence of human fire found in the archaeological field. The Pei family of Wenxi has produced 59 prime ministers and 59 generals, which is known as "the generals and ministers are connected with the martial arts, and the public officials and marquis", and has formed the culture of Guan Gong, the culture of root ancestors, the culture of salt, the culture of virtue and filial piety, and other distinctive cultures. It has formed a regional culture with distinctive characteristics, such as Guan Gong Culture, Root Ancestor Culture, Salt Culture, Virtue and Filial Piety Culture. In 2023, the GDP of Yuncheng City will be 232.99 billion yuan, which is 5.6% higher than that of the previous year according to the constant price.