The child thin resistance poor can be improved from the diet, rest and relaxation and other aspects. 1. Diet: children thin may be too little intake of nutrients, dietary mix is not reasonable and lead to malnutrition, poor immunity, therefore, should strengthen the nutrition, meat and vegetables with a reasonable mix, such as choosing meat, eggs, milk, fish and other protein-rich foods, but also eat more fresh vegetables to replenish vitamins and other substances. 2. Work and rest: usually should be regular work and rest, avoid sleeping too late at night, daytime should also be appropriate exercise, sunshine, basketball, running and other sports can exercise, enhance physical fitness. Usually pay attention to keep warm, avoid cold and cold, when the disease timely treatment, to avoid delaying the disease.