Abstract: Potatoes were rich in nutritional components required for good health,such as dietary fiber and essential amino acids. In addition,fat and sugar contents of potatoes were relative low. Potato as a staple food means that potato was used for making the steamed bread,noodles,or rice noodles,which were popular for Chinese consumer. Potato will become the fourth largest staple food in China after rice,wheat and corns,which could achieve the change of potato from non-staple to staple food consumption. Potato as a staple food could improve the dietary structure and health level of people. Furthermore,the potato flour and its production line were keys to promote potato as a staple food.