Potatoes are not native to China. At first, 1570 was introduced from Colombia in South America to Spain in Europe. After artificial selection, it becomes a long-term type. Later, it spread to Asia, North America, South Africa and Australia. So it is called "potato", and potato itself is taro-shaped, so it is called "potato" in some places.

At present, it is difficult to determine when and where potatoes were introduced into China. According to the records of Xingping County, Shaanxi Province and Songxi County, Fujian Province revised in 1700,16th century to19th century was introduced to China from northwest and south China through various channels. Some scholars believe that as early as the16th century, during the Wanli period of the Ming Dynasty, potatoes were introduced to China.

At present, potato is the most important food crop used as human staple food in the world except grain, mainly eating its underground tubers.

Potatoes have high nutritional value and medicinal value. It is rich in carbohydrates and can provide a lot of heat energy for the human body. Potatoes are also full of nutrients, including protein, minerals (phosphorus, calcium, etc. ), vitamins and other ingredients, and its nutritional structure is more reasonable, so it is called "underground apple".

It contains 10 times as much vitamin C, 4 times as much B vitamins and several to dozens times as much minerals as apples, so it has a good feeling of fullness after eating. Potato skin is rich in chlorogenic acid and lipoic acid. Chlorogenic acid has antioxidant and anticancer effects, while lipoic acid can lighten spots and prevent skin aging. Potatoes also contain dietary antioxidants and healthy dietary fiber that help prevent diseases in the elderly.