Purple potato is also called black potato and purple potato. Its skin is dark and shiny, and its flesh is dark purple. It has strong growth ability and adaptability, so it can be planted in most parts of the country. However, most purple potatoes currently on sale are produced in parts of Yunnan and Shanxi, and are rare in other places. Purple potato is a very high-quality economic crop with high yield and wide uses. It not only has special color, but also has high nutritional value, and is rich in high-quality protein, carbohydrates, vitamins, mineral elements and anthocyanins.

Anthocyanins contained in purple potatoes have the effects of enhancing human immunity, delaying aging, resisting cancer, caring skin and preventing hypertension. Purple potatoes can be eaten the same as ordinary potatoes. They can be roasted, stewed and fried. It is ok to wipe potatoes and mashed potatoes like Li Ziqi. Purple potatoes with rich fragrance and glutinous taste can not only be used for cooking, but also be a good raw material for extracting anthocyanins.