Located in the southeast of Jiangsu Province, it faces Shanghai and Suzhou across the river in the south, borders Taizhou in the west and Yancheng in the north. Nantong is a plain with an average elevation of five or six meters, with an average elevation of about four meters. According to the intersection of rivers and seas, it faces China's most economically developed Shanghai and southern Jiangsu across the river, with the vast northern Jiangsu Plain in the north, and the railway connects Eurasia. From the Yangtze River estuary to the sea, you can reach the coastal areas of China and ports all over the world; Upstream, you can reach Jiangsu, Anhui, Jiangxi, Hubei, Hunan, Sichuan and Yunnan, Guizhou, Shaanxi and Henan provinces.