Children 6-7 years old are in the school learning stage, growing and developing relatively quickly, and their demand for energy and nutrients is relatively higher than that of adults, so adequate nutrition is the basis for normal intellectual and physical development of children, and even the material guarantee of lifelong health. The corresponding diet should be diversified, nutritionally balanced, maintain appropriate weight gain, and not picky and partial eating, and develop healthy eating behavior. First of all, we should ensure regular meals, eat a good breakfast, and ensure the nutritional quality of breakfast. Lunch should be full, and dinner should be moderate, and fast food with high salt, sugar and fat should be eaten sparingly. In order to adapt to the rapid growth and development of children, it is recommended to increase outdoor activities and to ensure daily intake of milk and dairy products, more than 300ml per day. Frequent consumption of iron-rich foods, such as lean meat and animal liver, along with vitamin C-rich foods, such as fresh vegetables and fruits, to promote the absorption of iron in the body. Specifically, children in the 6-7 years stage should consume about 200g of staple food, 40g of animal and poultry meat, 350g of milk, 70g of soy products, and 250g of vegetables and fruits every day.