Dayu, known as Nan'an in ancient times, is subordinate to Ganzhou City of Jiangxi Province, located at the intersection of Gan, Guangdong and Hunan provinces, and is the "south gate" of Jiangxi. It covers an area of 1,368 square kilometers, with 8 towns and 3 townships under its jurisdiction. According to the seventh census, as of November 1, 2020, the resident population of Dayu County is 264,995 people. Dayu County is the place of origin of Zhou-Cheng Science in Song Dynasty. Sights and monuments include the Meiguan and ancient stage road opened by the Tang and Song dynasties, Lingyan Temple in Yashan of the Southern Tang Dynasty, Jiayousi Pagoda of the Song Dynasty, and Peony Pavilion of the Song Dynasty, among which the Jiayousi Pagoda, Meiguan, and the ancient stage road have been listed as the sixth batch of national key cultural relics protection units. In December 2019, it became a pilot unit for the construction of the national rural governance system. in June 2020, it was selected to the list of national forest recreation bases (the first batch). on June 30, 2020, it was selected to the "list of the second batch of counties in the area of revolutionary cultural relics protection and utilization". on July 29, 2020, it was selected to the list of the 2017- On July 29, 2020, it will be named to the list of national sanitary townships (county towns) in the 2017-2019 cycle. At the end of 2019, the gross regional product will be about 10.557 billion yuan, and the total revenue will be about 1.370 billion yuan.