目的　探讨过敏性紫癜并发急性肠套叠的临床特点、诊断及外科治疗。方法　对 12例过敏性紫癜并发急性肠套叠患儿的临床资料进行回顾性分析。结果　该病症状不典型 ,小肠套叠多见 ,常发生肠坏死或肠穿孔 ,且发生时间较早。腹部B超检查 9例全部确诊 ;术前漏误诊 3例。全组均行手术治疗 ,无术后并发症和死亡。结论　该病临床症状多不典型。腹部B超检查有确诊价值。诊断一旦明确即应采取手术治疗 Objective To investigate the clinical features, diagnosis and surgical treatment of allergic purpura complicated with acute intussusception. Methods The clinical data of 12 children with allergic purpura complicated with acute intussusception were retrospectively analyzed. Results The symptoms of atypical cases, more common intussusception, intestinal necrosis often occur or intestinal perforation, and occurred earlier. Abdominal B-ultrasound examination in 9 cases were diagnosed; misdiagnosis in 3 cases. All patients underwent surgical treatment without postoperative complications and death. Conclusion The clinical symptoms of the disease are not typical. Abdominal B-ultrasound has confirmed the value. Once the diagnosis is clear, surgical treatment should be taken