Qidong, a county directly under the financial control of Jiangsu Province, is a county-level city under the jurisdiction of Jiangsu Province, with Nantong as its trusteeship. It is located at the southeast end of Jiangsu Province, on the north bank of the Yangtze River estuary, and it is the earliest sunrise place in Jiangsu Province. As of 202 1, 10, Qidong has nine towns under its jurisdiction, with a total area of 1208 square kilometers and 202 1.

In the fifth year of Xiande in the later Zhou Dynasty, Haimen County was set up in Dongbuzhou, which was transferred to Tongzhou. Haimen county includes the central and northern areas of Qidong today. In the seventeenth year of the Republic of China, Qidong County was established in Waisha, Chongming County, with the intention of opening up the eastern border of China. 1989, Qidong County was abolished and Qidong City was established at the county level.

The Origin of Place Names in Qidong City;

19 12 proposed dividing counties from Chongming, and planned to merge eastern Nantong and Haimen into Chongming Waisha County, which was called Sanhe County. However, this county name is useless. Cheng Dequan, the governor of Jiangsu Province, plans to change Zhenyang County, which has collapsed in the south of the Yangtze River, to a new county name in Waisha, but the county name has not been made, leaving Zhenyang City as a place name.

1927 from the end of March to the middle of April, the local people drove away the reactionary administrative Committee member Chen Shibi and spontaneously established Jianghai County. Before the county was formally established, it was proposed to set up Waisha County, Beixin County and Huilong County. 1October 27th, 1928, Mao Zuquan, director of the Civil Affairs Department of Jiangsu Province, submitted a resolution on the division of Waisha County to the provincial party committee meeting.