Walnut is known as the famous "Four Nuts" with almond, cashew and hazelnut, it can be eaten raw or cooked; also can be extracted oil, made cakes and candy. It's delicious and high nutritional value, rich in protein and carbohydrate; there are 22 kinds of mineral elements and 7 kinds of essential amino acids, it can lower blood lipids, prevent heart diseases, anti-aging, anti-cancer and have good effects on brain. Many people call it "Hercules Food", “Nutritious nuts” etc., the necessary food on Christmas and other traditional holidays.