Improve children’s immunity usually have the following aspects: First, the most important thing is to ensure reasonable nutrition, only normal nutrition, growth and development in a normal state of the body’s immunity will be improved. Second, should be appropriate exercise, exercise will undoubtedly strengthen the body. Third, pay attention to the gastrointestinal tract or other systemic diseases, should be timely to do a thorough cure and conditioning. Fourth, you can take probiotics to improve the intestinal micro-ecosystem to promote digestion and absorption. Fifth, you can take appropriate immune enhancers, such as Chinese patent medicines such as astragalus and western medicines such as splenic aminopeptide and so on have a certain effect.