社区获得性肺炎是全球范围内的疾病，也是造成儿童死亡的首要原因。近年来，支原体肺炎在儿童社区获得性肺炎中越来越占有主导地位，发病率攀升，难治或重症病例增加，这部分病例急性起病，病情进展迅速，治疗棘手，已成为儿科医师关注的热点话题。目前国内外尚无重症支原体肺炎的诊疗指南，临床上存在治疗过度或治疗不足的现象。合理、有效的诊治重症支原体肺炎，减少后遗症发生，改善疾病预后是每一位儿科医师的期望。“,”Community acquired pneumonia is a worldwide disease and is the primary cause of death in children.In recent years, mycoplasma pneumonia in children is more and more dominant in community-acquired pneumonia,sharp increase in the morbidity,refractory or severe cases have increased,which are fea-tured with acute onset,rapid progress and difficult to treat,and has become a hot topic for the pediatricians. There is no severe mycoplasma pneumonia guidelines so far,there is the phenomenon of excessive or insuffi-cient treatment in clinical .Reasonable and effective diagnosis and treatment of severe mycoplasma pneumonia to reduce complication and improve the prognosis are the expectations of every pediatrician .