USDA was formerly the Federal Ministry of Agriculture established by 1862 and later renamed as 1889. The main functions are: responsible for the planning, production, sales and export of agricultural products, various crops and livestock products; Supervise the trade of agricultural products, ensure fair prices for producers and consumers, and stabilize the market; According to the production and consumption of agricultural products at home and abroad, put forward measures to limit or expand production; Responsible for developing rural housing construction, beautifying the environment, protecting forests and agricultural education.