Jiangsu Province, Guanyun doudan culture. In jiangsu province guanyun county, bean dan is a household food, the market selling price of more than 100 yuan per kilogram, farming bean dan has become a farmer to increase the income of the characteristics of the product. Guanyun county bean Dan farming area of about 20,000 acres, is the country's largest bean Dan trading distribution center, formed a set of bean Dan farming, sales, processing in one of the complete industrial chain, driving tens of thousands of people employed. In order to create a brand of bean dan, Guanyun County has held nine consecutive "bean dan food and culture festival". Guanyun County Yimin Doudan Breeding Base (once known as: Guanyun County Yimin Green Ecological Breeding Operation Department), founded in 2019, is located in Lianyungang City, Jiangsu Province.