1, asthma children’s diet should be light, easy to digest, pay attention to meat and vegetables, eat more vegetables, fruits, supply according to need, avoid overdiet, maintain normal digestion. 2, such as asthma attacks and eating certain foreign protein related, such as fish, shrimp, crab, eggs, milk, etc., then try to avoid. 3, do not eat food containing nitrite preservatives, should not eat stimulating food, such as chili. Avoid frozen drinks and food after exercise and when the condition is unstable. Encourage breastfeeding for at least 6 months, because breast milk contains SIgA, which can increase the ability of the respiratory tract to resist infection. 5. If food allergy exists, avoid allergic foods and find out whether the ingredients or additives in the food contain allergic substances. If the child is highly allergic to cow’s milk, he/she should read the food labels carefully, and should not eat bread, cookies, ice-cream and other dairy products that contain traces of cow’s milk.