The outbreak of COVID-19 has caused serious impact on the life service industry represented by the catering industry. Operators are generally faced with the problems of cash flow tension caused by the shrunk demand，and sharp increase in the cost caused by the overstocking of raw materials. In the short term，the Internet-based catering platform has played a “lifeline” role in connecting demand and reducing costs and expenditures for enterprises. In the long run，the outbreak of the epidemic has objectively reshaped people’s consumption habits towards Internet-based catering，and accelerated the process of small and medium-sized fast food merchants to apply the digital platform. This paper firstly sorts out the structural characteristics of Internet-based catering consumption during the epidemic period，analyzes the current situation and problems of digitalization in the catering industry，puts forward the concept and connotation of new digital infrastructure with “platform” as the core，explains the social value of digitalization in the catering industry，and finally provides relevant policy suggestions.