Hairy crabs have become a popular New Year product in Jiangsu water towns, and crab pickers can earn up to 1,000 yuan a day. Jianhu is located in the hinterland of Lixia River, with abundant sweet water and grass.

It is a high-quality hairy crab breeding ground. The county has more than 100,000 acres of breeding area. The Chinese geographical indication certification trademark "Jiulongkou Hairy Crab" is famous far and wide.