A new potato variety, native to Huize, Yunnan, has a purple-black skin. After cutting, it is purplish red, full of meat and clear in color, like a blooming purple flower, radiating outward from the center. It does not fade or deform after cooking, and is rich in various trace elements needed by human body, especially calcium, which is easily absorbed by human body. If you eat it regularly, it is especially effective for slimming and strengthening the body. It has high ornamental value and edible value. Most parts of Yunnan can be planted, and now it has been introduced to other provinces and cities.