Preventive measures for pediatric respiratory diseases mainly include the following: 1, reasonable diet: parents of children should arrange an age-appropriate, easily digestible and acceptable diet for children according to their age; 2, strengthening physical fitness: safe and appropriate exercise according to the age of the child, sun exposure during infancy, pedaling bicycles, jogging, climbing and other exercises when older; 3, immunization: parents can arrange effective immunization for children before the high influenza season.