Parents can prevent common pediatric infectious diseases by keeping the environment clean and controlling the source of infection; doing a good job of disease prevention and vaccination protection; adjusting the diet and improving the body’s immunity. Spring is the season of high incidence of common pediatric infectious diseases, such as influenza, measles, chicken pox, mumps, hand-foot-mouth disease, etc. In order to prevent common pediatric infectious diseases, parents can take the following measures: Tidy environment and control of infectious sources: keep the indoor environment tidy and air circulation, disinfect daily necessities, toys and activity places, and cultivate children’s good habits of hygiene. Vaccine protection: according to the seasonal prevalence of diseases and children’s physical condition, you can choose vaccination. Adjusting diet and improving immunity: It is recommended that a light diet is the mainstay, and children should be urged to exercise moderately and get enough sleep to improve their immunity.