Ansai millet has a long history of planting. Millet is one of the oldest cultivated crops in China. The corns of the millet and the pottery jars in the Banpo Village site in Xi'an, Shaanxi Province, have been discovered for more than 6,000 years. Many archaeological data prove that in the early part of the Yangtze River, there were mainly crops such as alfalfa, millet and sorghum; In the middle and lower reaches and the southeast coast, rice production is the main area. This shows that in that era, the situation of the northern dry farming area and the southern paddy field has been formed.