Yancheng, which belongs to Jiangsu Province, is located in the central part of the eastern coast of China, the central and eastern part of Jiangsu Province and the northern wing of the Yangtze River Delta. Yancheng is the largest prefecture-level city in Jiangsu Province, with an urban area of10.7 million square kilometers and a permanent population of 7210.6 million. Among them, the municipal area is 492 1 km2, with a permanent population of 2.4 million.

Yancheng borders the Yellow Sea in the east, Nantong in the south, Yangzhou and Taizhou in the southwest, Huai 'an in the northwest and Lianyungang in the north. The city is known as the "land of plenty" because of its flat terrain, vertical and horizontal canals and rich products. Yancheng is a new industrial and commercial city along Jiangsu coast, and also an important regional central city in the Yangtze River Delta.

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.