Fast food refers to popular catering which is quickly supplied by commercial enterprises, can be eaten immediately, has reasonable price and meets people's daily needs. It has the characteristics of quickness, convenience, standardization and environmental protection [1]. Hong Kong and Taiwan have translated into fast food, fast food and so on. Different from lunch, consumers' understanding of fast food is varied, far beyond the original meaning of foreign words. But nothing more than that, that is, fast food is produced by food factories or processed by large and medium-sized catering enterprises, which is popular, time-saving and convenient and can be used as a staple food. Fast food has become a way of life, so "fast food culture" and "fast food doctrine" have emerged.