In 2021，the COVID-19 pandemic continued to affect the catering business，making the catering industry enter the second year as the “dark period”. While the restaurant business has been greatly affected by the pandemic，food delivery has seen explosive growth. According to the data from the Report on the Development of China’s Sharing Economy（2022）released by the State Information Center，from the perspective of household consumption，per capita expenditures on online food delivery accounted for 21.4% in the food and beverage consumption expenditure in 2021，a year-on-year increase of 4.5 percentage points. Under the impact of COVID-19，catering enterprises have all turned to the exploration of online food delivery business，and spent more energy in making standardized production of finished products and semi-finished products，and launched various sales channels such as “restaurant food + food delivery + takeout + retail”.