Abstract： The incidence of food allergy (FA) in children has been increasing year by year,becoming one of the main factors affecting children's health and attracting widespread attention from society.There is a close relationship between FA and tic disorder (TD),and FA is a risk factor for the occurrence of TD.FA can not only induce TD,but also coexist and affect each other,exacerbating the disease condition.This article summarizes the epidemiology,co-morbidity mechanisms,microecological intervention effects of FA combined with TD,and elaborates on the interrelationship between them.