Allergic conjunctivitis is a common ocular surface disease in children，but the research reports on allergic conjunctivitis in children are relatively scarce. The prevalence of allergic conjunctivitis in children in various countries is increasing year by year and the disease course is long and easy to recur，which seriously affects the quality of life of children. Understanding the epidemiological characteristics of children’s allergic conjunctivitis and the latest research progress of related risk factors can help clinicians to improve their understanding and attention to children’s allergic conjunctivitis. Therefore，it is necessary to review the current epidemiological characteristics and related risk factors of children with allergic conjunctivitis.