Potato is rich in nutrients, colour, scent and taste, and was once considered king of vegetables. Per 100 grams of fresh potato, 5.15 g protein, 0.28 g fat, 12.71 g carbohydrates, 170 mg calcium and 80 mg phosphorus were determined. The protein content is 2.1 times greater than the mountain medicine. The diets have the effect of spreading air, detoxifying spleen and curing cough. Potato is cooked in a variety of ways, such as fried, fried, fried and stewed, and has always been a necessary meal for the festival and celebration。