In the second year of Wu Chiwu in the Three Kingdoms (239), Luoyang County was located in the south of Daluoshan (Quanshan) in Yongning County, belonging to Huiji County, and located in the Lu 'ao (Xi 'ao and Hedai Bridge) of Beihu Lake, which was the beginning of the establishment of Ruian County. In the second year of Taiping (257), Luoyang County belonged to Linhai County. In the third year of Baoding (268), Luoyang County was changed to Anyang County. In the first year of Taikang in the Western Jin Dynasty (280), Anyang County was changed to Angu County. In the fourth year of Taikang (283), Chuantun, south of Angu County, and Shiyang County (now Pingyang County, Cangnan County and Taishun County) were analyzed. In the first year of Taining in the Eastern Jin Dynasty (323), Angu County moved to at least Gongyu. In the ninth year of Emperor Kai of Sui Dynasty (589), Hengyang Province entered Angu County, a county. In the 12th year (592), Angu County entered Yongjia County. In the fifth year of Wude (622), Yongjia County established Dongjiazhou, Yongjia County established Angu and Hengyang. In the first year of Zhenguan (627), Hengyang Province entered Angu. In the first year of Dazu (70 1), Hengyang County was established in Angu County. In the second year of Tang Tianfu (902, one day after three years), Angu County was changed to Ruian County. In the first year of Xianchun in the Southern Song Dynasty (1265), Wenzhou was changed to Ruian Prefecture, and Ruian County was unified. In the 13th year of Yuan Dynasty (1276), East Zhejiang Road was changed to Jianghuai Province, and Ruian Prefecture was changed to Wenzhou Road, which belonged to the county. During Zhenyuan period (1295), more than 50,000 households in Rui 'an County rose to the state. In the second year of Hongwu in Ming Dynasty, Ruian Prefecture was reduced to a county. Jingtai three years (1452), Taishun County, Kerui 'an Township 5 Du 12. In 35 years of the Republic of China, wencheng county was set up, and the size, Longfeng, Zhangjin, Maokou and other towns in the west of Rui 'an were analyzed. 1949 may 10, the liberation of Ryan; 14 In May, the Preparatory Committee of Ruian County People's Government was established; On September 5th, the People's Government of Ruian County was formally established. 1955 10 In June, the Ruian County People's Government was changed to the Ruian County People's Committee. From 1955 to 1957, Zengdu Township in Beiji and Belon belongs to Dongtou County. 1958 101October 14, wencheng county merged into Rui' an county,1961August10 (the date of publication by the superior), and wencheng county left Rui' an county. 1958 county people's Committee (county people's government) moved to No.34, Cang Qian street. 1June, 969, Ruian County People's Committee was changed to Ruian County Revolutionary Committee; 1June, 980, Ruian County Revolutionary Committee was abolished and Ruian County People's Government was re-established; 1 987 April 15 (the State Council document was issued on April15, and a celebration meeting was held on July1day, and the city opened a new seal on that day). Withdraw the county and set up a city (county level), and the jurisdiction of the Ruian Municipal People's Government remains unchanged. From 1949 to 1996, Ruian City (county) successively belonged to Wenzhou Military Management Committee, the Fifth Special Zone of Zhejiang Province, Wenzhou Special Zone of Zhejiang Province, Revolutionary Committee of Wenzhou City of Zhejiang Province, Wenzhou District of Zhejiang Province and Wenzhou Municipal People's Government of Zhejiang Province. 1999 1 The Municipal People's Government moved from Cang Qian Street to the compound of the new municipal committee of Anyang New District.