Children’s immunity is affected not only by innate factors, but also by acquired nutrition, physical exercise and vaccination. Therefore, it can be enhanced by strengthening nutrition, increasing physical exercise and receiving vaccination on time. 1. Enhance nutrition: the nutritional status of children will have a certain impact on the body’s immunity, when the nutrition is poor, the immunity will often be reduced. Therefore, children should have a balanced diet and strengthen nutrition. 2. Increase physical exercise: do some suitable sports for children, such as jumping rope, jogging, etc., through appropriate physical exercise can enhance physical fitness, so that the immunity is enhanced. 3. Timely vaccination: vaccination in accordance with the childhood vaccination program is conducive to enhancing the child’s resistance. For example, during the influenza season, you can also be vaccinated against the influenza virus. In addition, the life of the child should be regular work and rest, develop good habits are conducive to improving children’s immunity, when the child’s immunity low disease, should be timely to the hospital, and under the guidance of the doctor for treatment.