Ansai County is a county of Yan'an, Shaanxi, China. It has a total area of 2,950square kilometers and a population of 1.5million people. It has an average elevation of 1,200meters, which is typical for the Loess Plateau. Its postal code is 717400.
Ansai's cultural heritage includes typical Shanbei (陕北) folk art. There is a tradition of paper-cutting, the painting of farmers, clay crafts, waist drums and folk songs. Ansai's drum music has long been famous. A large number of folk art items are stored in the county office.