目的　探讨支原体肺炎合并深静脉血栓的临床表现及治疗。方法　回顾性分析2例支原体肺炎合并左下肢深静脉血栓患儿的临床特征及诊疗经过。结果　2例患儿均为男性，分别为5岁2个月、3岁6个月，给予红霉素、激素、静脉丙种球蛋白、肺泡灌洗、溶栓等治疗，随访2病例均获得了治愈。结论　支原体肺炎需注意血栓的发生，血栓的早期发现、早期治疗对预后至关重要，有关血栓的预防，需进一步研究。

　Objectives　To explore the clinical manifestations and treatment of Mycoplasma pneumoniae pneumonia (MPP) combined with venous thrombosis. Methods　The clinical manifestations and treatment of MPP combined with venous thrombosis were retrospectively analyzed. Results　Two male patients were 5 years 2 months and 3 years 6 months old respectively. After treatment with erythromycin, corticosteroids, immunoglobulin, bronchoalveolar lavage and thrombolytic, both cases were cured. Conclusions It is necessary to pay attention to the occurrence of thrombosis in MPP. Early diagnosis and treatment of thrombosis is very important for the prognosis. The prevention of thrombosis needs to be further studied.