Objective: To explore the therapeutic effect and nursing value of traditional Chinese medicine foot bath combined with evidencebased nursing intervention on children with allergic purpura (HSP). Methods: A randomized controlled trial design was used to select 120 children with HSP admitted to our pediatric department from June 2022 to June 2025. They were randomly divided into a control group (n=60) and an observation group (n=60). The control group received routine nursing intervention, while the observation group received traditional Chinese medicine foot bath combined with evidence-based nursing intervention on the basis of routine nursing.Compare the clinical symptom relief time, laboratory indicators, recurrence rate, and otherindicators between two groups of pediatric patients. Results: The disappearance of rash, relief of joint swelling and pain, and improvement of abdominal pain in the observation group were significantly shorter than those in the control group (P