The scientific connotation of Chinese cooking is very rich, and its central content is the ultimate goal of cooking and eating that meets nutritional requirements and achieves health-preserving effects.

① The food concept of the harmonization of the five flavors

The "Huangdi Nei Jing" says: "The sky eats people with the five qi, and the earth eats people with the five flavors." , Qi and blood flow, and the internal organs are dense. In this way, the bones and energy are refined, the Tao is followed, and the destiny is long." Taste is a general term for the five flavors of food, and harmony is the best state of beauty in food. This kind of harmony, obtained by modulation, can not only meet people's physiological needs, but also satisfy people's psychological needs, so that the physical and mental needs can be unified in the harmony of the five flavors. The harmony of food is the result of a deep understanding of the nature and relationship of food. Taste is the basis of blending. The balance of yin and yang is necessary for human health. The harmony of the five flavors in food is a principle of gourmet food. Chinese cooking science is based on the principle of harmonizing the four seasons. Both the blending and side dishes are seasonal and the dishes are prepared accordingly. In the pursuit of delicious food, we should value the delicious food.

②The nutritional view of health-preserving food therapy

"Huangdi Neijing" says: "Taste returns to form, form returns to qi, qi returns to essence, and essence returns to transformation." "The five flavors enter the mouth and are hidden in the intestines and stomach. The flavors are stored in order to nourish the five qi. The qi is harmonious and the body fluids complement each other. The spirit is autonomous." This concept believes that the purpose of human diet is to make the human body full of qi, energy, and spirit. Prosperity, health and longevity. Around this purpose, the traditional Chinese theory of health-preserving food therapy gradually formed. The dietary structure of "five grains for nourishment, five fruits for help, five livestock for benefit, and five vegetables for supplement" not only allows the Chinese nation to survive and develop, but also avoids many "civilizational diseases". It is recognized by overseas nutritionists praise. Another benefit is the medicated diet, which can maintain good health without disease and cure disease with food. It is as famous as French cooking and Turkish cooking, and is known as the three major flavor systems of world cooking.