Yancheng was the land of Huaiyi before the week; Zhou belongs to Qingzhou, Spring and Autumn belongs to Wu, and then to Yue. During the Warring States period, it belonged to Chu. Qin belongs to Donghai County; At the beginning of the Western Han Dynasty, Sheyang Hou and Liu were divided into fiefs, and the county was established in the fourth year of Emperor Yuanshou of the Han Dynasty, which was the beginning of Yancheng County. During the Three Kingdoms period, it belonged to Wei, and counties abolished it. The western Jin dynasty restored the county system; In the seventh year of the Eastern Jin Dynasty, Yixi was renamed Yancheng, which is the beginning of its current name; The Northern and Southern Dynasties called Yancheng County; At the beginning of Sui Dynasty, it was still a county, belonging to Jiangdu County. At the end of Sui Dynasty, Wei Che was king according to salt, which was divided into two counties: Xin 'an and Anle, and Yancheng County in the early Tang Dynasty. The Song Dynasty belonged to Chuzhou; The Yuan Dynasty belonged to Huai 'an Road; The Ming Dynasty belonged to Huai 'an Prefecture; It was a part of jiangnan province in the early Qing Dynasty, and was transferred to Jiangsu Province in the sixth year of Kangxi. At the beginning of the Republic of China, it was the tenth administrative supervision area of Jiangsu Province. 1946, Yancheng was renamed Ye Ting City, but its original name was still restored. Setting of other counties: Funing county was established in the ninth year of Yongzheng in Qing dynasty; Dongtai county was built in Qianlong thirty-three years; In the middle of War of Resistance against Japanese Aggression, four counties were established: Taibei, Yandong, Fudong and Jianyang. Xiangshui County is newly built 1966. 1983, the new system of city governing counties was abolished, and seven counties including Xiangshui, Binhai, Funing, Sheyang, Jianhu, Dafeng and Dongtai were under its jurisdiction. After 1987, Dongtai and Dafeng successively set up cities. 1996, the suburbs were abolished and Du Yan county was established. In 2003, the city was changed to tinghu district; Du Yan County was abolished and Yandu District of Yancheng City was established. The former administrative regions of Panhuang, Dazong Lake, Beilonggang, Wang Lou, Xuefu, Yifeng, Shangzhuang, Wu Ge, Beijiang, Qinnan, Longgang, Guo Meng, Dagang 13 in Du Yan County were the administrative regions of Yandu District, and the district people's government was stationed in PanHuang Zhen. Tinghu district has jurisdiction over Buffon, Una and Biancang, the former Yancheng City and the former Du Yan County, and the District People's Government is located in Renmin Middle Road.

In 2007, the Jiangsu Provincial Government approved the Zhangzhuang Sub-district Office in tinghu district of Yancheng City to be placed under the jurisdiction of Yandu District, which is the outline of Yancheng's historical changes.

Yancheng was a land in ancient times, and later Lu Chen became a coastal plain. After the founding of the People's Republic of China, it can be confirmed that Yancheng became land at least 20,000 to 30,000 years ago. The discovery of stone tools and bone implements in Yangzhai, Funing County shows that there were traces of primitive tribal groups who lived by fishing and hunting in Yancheng at the latest in the late Neolithic period 4000 years ago. As early as the early years of the Western Zhou Dynasty, the bird of the Emperor Lu ordered the Yi people to move south. On the way, some Yimin stayed in Yancheng to settle down. They can be said to be the early pioneers of Yancheng.

Salt industry, fishery and agriculture are developed in Yancheng history, especially the production of Huai salt. In the pre-Qin period, salt was cooked sporadically. From the Western Han Dynasty to the mid-Qing Dynasty, Huai salt was always one of the main financial resources of the feudal dynasty. In the Tang Dynasty, Yancheng was also one of the main seaports in China. According to the old and new records of the Tang Dynasty, Korean monks named Sheng Da, Silla King, Jin Shixin, Japanese Ambassador Makoto Suta, Shi Gen of Xiao Ye and Ma Lu of Abe all landed in Yancheng and went to Chang 'an or went to sea. During the Hongwu period of Ming Dynasty, Zhu Yuanzhang immigrated from Suzhou and Songjiang to settle in Yanchang in order to restore the coastal economy, and the population of Yancheng increased greatly. Yancheng's handicraft industry is also quite developed. During the Ming and Qing Dynasties, Zhou Yetie and Li Fang set off fireworks in Jianhu, Cao Shi woodcarving in Dongtai, down feather fans and clay sculptures in Binhai, Xituan hair embroidery in Dafeng, and Mufurong cloth in Anfeng, Dongtai, were all famous products between Jianghuai.

The development of culture is consistent with the development of economy. Yancheng is also a place where everyone gathers. On the land of Yanfu, Chen Lin, one of the "seven sons of Jian 'an" in Xiong Wen, was born. There was a famous doctor Xu Daodu in the Northern and Southern Dynasties and a water conservancy expert Feng Daoli in the Qing Dynasty. In Ming and Qing Dynasties, there were poets Wu Jiaji and Chen Yushu, calligrapher Song Cao, painter Wan Lan and storytelling pioneer Liu Jingting. Jianhu's "Hundred Dramas" enjoyed a high reputation in the Tang Dynasty, and the 18th Group of Qingfeng was one of the three and a half cradles of acrobatics in China. In the mid-Ming Dynasty, Taizhou School with national influence, represented by Dong Tai An Feng Wang Gen, also appeared. There are many literati and celebrities in modern Yancheng.

There have been many people with lofty ideals and national heroes in Yancheng history. At the end of the Yuan Dynasty, Zhang Shicheng, a salt farmer in Cao Yan saltworks, set out for Baijuchang. At the end of the Southern Song Dynasty, Lu Xiufu was a fellow villager of Yancheng Changjian. He is a scholar on the same list as Wen Tianxiang, and he is Prime Minister Zuo. He fought the Yuan Dynasty on the cliff mountain and carried the young emperor to the sea to be a martyr. Wang Zhizhen in the late Ming and early Qing Dynasty was the right-hand man of Shi Kefa, a famous anti-Qing fighter. Since modern times, Ma Yuzhen has resisted foreign invasions in Sanhe and Baodi counties and safeguarded the interests and dignity of the Chinese nation.