At present, there is no food and medicine can increase children’s immunity, but through the balanced food, as well as the quality of sleep, physical exercise and other aspects of the increase in immunity has a certain degree of help, the specific analysis is as follows: 1. Balanced food: children’s physical development needs, so parents usually need to reasonable balanced diet, such as vegetables, fruits, eggs, milk, meat, etc. need to be comprehensive intake, do not let the children develop picky eaters as well as partiality of the habit of eating. 2. Sleep quality: let children keep enough sleep time, for improving their own immunity is a certain help. 3. Physical training: it is appropriate to let children participate in some jogging, swimming, playing badminton sports, which can help enhance immunity and resistance.