Objective To explore the current status of dietary behavior and social emotion of 1-3-year-old children with food allergy,and provide some reference and basis for the care and management of children with food allergy.Methods A total of 157 children aged from 1 to 3 years old with food allergy were recruited by convenience sampling from Pediatric Digestive Department of the 2nd Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University from January 2021 to November 2023.The survey was conducted using the basic information questionnaire,children dietary behavior questionnaire and emotional and social assessment scales for children aged 12 to 36 months.Results Sixty-nine point four percents(109/157)of food allergic children had one or more dietary behavior problems,with 40.8%(64/157)special preference for a food,34.4%(54/157)poor appetite,32.5%(51/157)parents overconcerned,31.2%(49/157)having bad eating habits,9.6%(15/157)fear of eating,4.5%(7/157)potential disease status.The T scores of externalization domain,implicit domain,disorder domain and competence domain were 54.32±10.76,49.63±10.13,52.46±10.64,and 46.84±10.12,respectively.The differences between the normal dietary behavior group,and the dietary behavior problem group in the externalization,implicit,disorder and competence domain were significant(P<0.05).Conclusion Medical staff should guide the caregivers to actively cultivate children's good dietary behavior habits,create a harmonious family environment,and promote the development of their emotional and social behaviors.