Henoch-sch?觟nlein purpura (HSP), also known as IgA vasculitis, typically involves small blood vessels in the skin, gastrointestinal tract, joints, and kidneys. The main clinical manifestations include non-thrombocytopenic palpable purpura, arthritis or arthralgia, diffuse abdominal pain, and renal damage characterized by hematuria and/or proteinuria. Approximately 20% to 80% of children with HSP exhibit renal involvement such as hematuria and proteinuria, and the recurrence rate of allergic purpura in children is high. Therefore, early intervention in the disease and improving long-term prognosis is crucial. Western medicine still does not have a clear understanding of the etiology and pathogenesis of HSP, and there are affirmative indicators for predicting the course and prognosis of the disease. Currently, there is no specific therapy for HSP, and treatments such as corticosteroids, immunosuppressants, and blood purification are only applicable to severe cases of allergic purpura. Traditional Chinese medicine(TCM) has a clear understanding of the etiology and pathogenesis of HSP, which is mainly related to wind, heat, stasis, and deficiency, with the disease location being in the collaterals. The clinical efficacy of TCM in treating HSP is affirmative.