Jiangyin, referred to as Chengyang for short, is a county-level city under the jurisdiction of Jiangsu Province. Hosted by Wuxi City, it is located in the north of Wuxi City, with 3140' 34 "north latitude, 3157' 36" east longitude and19 59' east longitude.

It is an important transportation hub and natural port city in the north and south of the Yangtze River, with a total area of 987.5 square kilometers. As of 20 19, the permanent population of Jiangyin City reached 1653400.

Jiangyin originally belonged to Emperor Yanling, and the Jin Dynasty was located in Jiyang County. 1983, Jiangyin County was changed to Wuxi City; 1987 Withdraw the county to set up the city; In 20 17, jiangyin became the only county-level comprehensive reform pilot city in Jiangsu province, which was named because it was located in the shadow of the great river.

As of 20 19, Jiangyin has jurisdiction over 6 streets and 10 towns; It also governs four township units. The municipal government is located in Chengjiang Street. In 20 17, Jiangyin was awarded the title of "National Civilized City". 20 18, jiangyin won the title of "national sanitary city".