The general principles of diet in autumn health-preserving recipes are: eat less spicy food and eat more sour food, that is, eat less spicy food, such as onion, ginger, garlic, leek and so on; Eat more sour fruits and vegetables. The principle of health preservation in autumn is completely different from that in spring and summer, and it is based on nourishing human yin. Diet mainly focuses on nourishing yin, moistening lung and restoring yang, that is, successfully completing the alternation of cold and hot seasons in Xia Dong. Eat more warm food and less cold things to consolidate healthy qi in the human body. Because the weather is dry and cool, the diet principle can be adjusted according to the changes of solar terms.