The Mallard duck native to Datang, Nanning, is well-known in Guangxi and even in the whole country, is compared with the domestic duck that has been fed with ordinary feed for 70 to 80 days. The duck raised in an eco-friendly way will naturally emit an aroma when it is cooked, and it has a thin skin and little fat, and the meat is tender, thick and delicious. It is cooked in boiling water and served without seasoning, which can preserve its original flavor.