Abstract: Objective：To explore the risk factors of recurrent respiratory tract infections(RRTI) and the distribution of TCM constitution in children with RRTI and their prone types.Methods：A total of 193 children with RRTI were selected as observation group,who were admitted to the Affiliated Hospital of Liaoning University of Traditional Chinese Medicine from June 2023 to March 2024，and 212 healthy children were selected as control group during the same period.Based on the TCM constitution theory founded by Academician Wang Qi,the TCM constitution of these children was divided into nine types，and the risk factors and TCM constitution types were investigated in the two groups.Results：Biased TCM constitution,poor appetite or anorexia,poor sleep quality,antibiotic use more than 3 times per year,history of allergic diseases and history of neonatal pneumonia were the risk factors for RRTI.Among the biased TCM constitution types,qi-deficiency constitution,yin-deficiency constitution and inherited special constitution were the prone types of the disease,while the balanced constitution was the protective type of the disease.Conclusion：In terms of risk factors,the children with biased TCM constitution,poor appetite or anorexia,poor sleep quality,antibiotic use more than 3 times per year,history of allergic diseases,and history of neonatal pneumonia are more likely to develop RRTI.Among the biased TCM constitution types,qi-deficiency constitution,yin-deficiency constitution and inherited special constitution are the types of TCM constitution prone to RRTI.

Key words: Recurrent respiratory tract infections, Risk factor, TCM constitution, Child