Daan District, belonging to Zigong City, Sichuan Province, is located in the southern part of the Sichuan Basin, located in the hinterland of the southern Sichuan urban agglomeration, the core area of the development of NeiZhi homogenization, is located in the northeastern part of the city of Zigong, between the latitude of 29 ° 19 ′ 30 ″-29 ° 28 ′ 53 ″, longitude 104 ° 44 ′ 08 ″-105 ° 04 ′ 14 ″, the jurisdiction of an area of 397.5 square kilometers. Daan District territory belongs to the subtropical humid monsoon climate type, characterized by abundant rainfall, abundant heat, long frost-free period and four distinct seasons. As of 2021, Daan District has 6 streets and 9 towns under its jurisdiction, and the People's Government of Daan District is stationed at No. 54 Guanghua Road. As of 00:00 on November 1, 2020, the resident population of Daan District was 291,645 people. With a total population of 411,600, Da'an District is an important node of the southern wing of the construction of the Twin Cities Economic Circle in the Chengdu-Chongqing region, and has been awarded the third batch of Tianfu Famous County for Tourism, China's most beautiful cultural and leisure tourism area, China's top ten famous cultural tourism areas with special characteristics, China's excellent eco-tourism area, and the provincial-level model area for whole-area tourism. Daan District originally belonged to Fushun County, Republic of China twenty-eight years (1939) was transferred to the jurisdiction of Zigong City. In 1944, it was changed to the sixth district of Zigong City from Xinzhu Town (Dawen), and in March-June 1950, it was merged into the third district by the sixth, seventh and ninth districts, and was renamed Dafenbao District in 1953, and was renamed Da'an District in August 1955 with the approval of the provincial government, and the People's Commune of Da'an District was set up in 1959 (at the district level), which directly belonged to the city of Zigong, and was restored to Da'an District in July 1961, which is directly under the city of Zigong, and is now under the jurisdiction of Zigong City. in July 1961, to restore the establishment of Daan District. There are ChengZhiLuChi and YuKun highway passing around the city, and the Sichuan-South Intercity Railway passing through the city. Daan District has Zigong Dinosaur Museum, Stanley Wells (national cultural relics protection unit), Changshanling Silicified Wood, Fayuan Wells, Stanley Park, Qinglong Lake, Gexian Mountain, Niuwang Mountain, Xishan Park, the ancient fortress of Sandaoshai in southern Sichuan, Qinglian Temple, Fuzi Temple, Hongfa Temple, Lianggao Mountain Guanyin Pavilion and other attractions. Daan District is the hometown of Sister Jiang and the hometown of dinosaurs. In 2020, the gross regional product of Daan District will realize 16.83 billion yuan.