Generally in the baby 4-6 months after the start to add complementary foods, at this time breast milk or formula can not meet the needs of physical growth and development, in the meal should pay attention to the principles and order of adding complementary foods, must follow the thin to thick, from fine to coarse, from small to large as well as accustomed to a kind of food and then add another kind of food. After adding food should not be changed frequently, after getting used to a kind of food usually lasts for 5-7 days, and the taste of food should be light, do not advocate putting salt in infancy, and when adding complementary food must be added when healthy, adding food can be gradually transformed from rice paste, rice flour to egg yolk, vegetable juice, as well as rotten noodles, minced meat, steamed buns, bread and so on.