The catering industry is mainly divided into five categories: tourist hotels, restaurants (Chinese food and western food), buffets and lunches, cold drinks and vendors. Specifically, it can be divided into three types: convenient mass catering market, high-grade catering market and atmosphere catering market. The convenient mass catering market is mass consumption; There are many second-and third-tier cities in the high-end catering market, especially the third-tier cities; Ambient catering market is sandwiched between high-end and low-end, mainly some theme restaurants and ambience restaurants.