From the perspective of evolution, China's food culture has lasted for tens of thousands of years, divided into three stages: raw food, cooked food, natural cooking and scientific cooking, with a variety of traditional dishes, industrial foods, colorful banquets and colorful flavor schools.

2. From the connotation, China's food culture involves the development and utilization of food sources, the use and innovation of tableware, the production and consumption of food, the service and reception of catering, the operation and management of catering and food industry, and the relationship between catering and national security, catering and literature and art, and catering and life realm.

3. From the extension, China's food culture can be classified from the perspectives of times and techniques, region and economy, nationality and religion, food and tableware, consumption and level, folk customs and functions, showing different cultural tastes and reflecting different use values.