During the Paleolithic period from 27,000 to 32,000 years ago, ancient human activity sites were discovered in Pengyang County. In the Neolithic Age, clan tribes dominated by agriculture had appeared. During the Warring States period, the local area belonged to the territory of Qin State. The earliest administrative system began in Wushi County (now south of Yuanzhou District) during the reign of Qin Huiwen (337-365438 BC+0/KLOC-0 BC), and then Chaona County (now the ancient town of Pengyang County) was added. In the third year of Emperor Wu of the Western Han Dynasty (1 14 BC), Anding County was established as Beidi County, and Gaoping County (now Yuanzhou District) ruled the county, with a total of 2 1 county, including Gaoping, Chaona, Wushi and Yueshi Road (now Longde County). The Eastern Han Dynasty is still modeled after the Western Han Dynasty. Dulu County was newly established in the Western Jin Dynasty. In the Eastern Jin Dynasty, there were four counties: Gaoping, Chaonan, Wushi and Dulu. During the Northern and Southern Dynasties, the local area was successively the territory of Northern Wei, Western Wei and Northern Zhou. In the second year of Taiyan in the Northern Wei Dynasty (436), Gaoping Town was established, and in the fifth year of Zheng Guang (524), Gaoping Town was changed to Yuanzhou, and Gaoping County and County were established, all of which ruled Gaoping. Yuanzhou District has jurisdiction over 2 counties of Gaoping and Great Wall, and 4 counties of Gaoping, Liting, Huangshi and Bai Chi. The Northern Zhou Dynasty was the seat of the former Governor's Office, and still led the counties 2 and 4. After the Sui Dynasty unified the whole country, Yuanzhou and the general government were abolished in the third year of Daye (607), and Pingliang County was established to govern Gao Ping (Gaoping Reform), Baiquan, Mo Ting and Tower. In the first year of Tang Wude (6 18), Pingliang County was abandoned and moved to Yuanzhou for five years (63 1), then moved to Zhongdufu in Yuanzhou, and changed to Pingliang County in the first year of Tianbao (742). Guangde period (763 ~ 764) was not in Tubo. In the Song Dynasty, there were Zhenrongjun (now Yuanzhou District), Huaidejun (now Huangduobao Township, Yuanzhou District), Deshunjun (now Longde County) and Xi 'anfu (now Xi 'an Township, Haiyuan County). Jin became a state, the town army was changed to a state, and the Deshun army was Deshun state, giving up the German army and Anzhou. In Yuan Dynasty, there were Kaicheng Road, Kaicheng County and Guang 'an County. Ming jia guyuanwei and guyuanfu. In the Qing Dynasty, there were Guyuan Prefecture, Longde County, Haicheng County and Huapingchuan Zhili Hall. After the Revolution of 1911, Guyuan Prefecture was changed to Guyuan County, Haicheng County to Haiyuan County, and Huapingchuan Zhili Hall to Huaping County. 1936, the red army's western expedition troops arrived in Guyuan, set up Gubei county in the northeast of Guyuan county, and moved to the three provinces of Shaanxi, Gansu and Ningxia, then withdrew and returned to Guyuan county shortly thereafter. Xiji county was newly established 1942. After the founding of People's Republic of China (PRC), Huaping County was changed to Jingyuan County. 1 953165438+1October1Xihaigu Hui Autonomous Region in Gansu Province was established, which governs Xiji, Haiyuan and Guyuan counties. 1955165438+10 was renamed as Guyuan Hui Autonomous Prefecture. 1958 10 established Ningxia Hui Autonomous Region, abolished Guyuan Hui Autonomous Prefecture, and established Guyuan Regional Administrative Office, which governs Guyuan, Haiyuan, Xiji, Longde and Jingyuan counties. 1983 Analysis of Pengyang County from Guyuan County. In July, 2003, Guyuan District Administrative Office was changed to Guyuan City, and Guyuan County was renamed Yuanzhou District, which governed Haiyuan County, Xiji County, Longde County, Jingyuan County, Pengyang County and Yuanzhou District. In June 2004, Haiyuan County was assigned to Zhongwei. Guyuan city now governs 4 counties 1 districts.