本文报告小儿心律失常2530例。常见类型为房室传导阻滞、过早搏动、不完全性右束枝阻滞、阵发性室上性心动过速。常见病因为感染中毒性心肌炎、风湿热、风湿性心脏病和洋地黄中毒。小儿心律失常的发生和感染疾病密切有关,因此防治小儿心律失常的关键就是防治小儿感染疾病。原发疾病控制后心律失常随之消失,心律失常引起死亡者仅占1％。 This article reports 2530 cases of arrhythmia in children. Common types of atrioventricular block, premature beat, incomplete right bundle branch block, paroxysmal supraventricular tachycardia. Common causes of infection of toxic myocarditis, rheumatic fever, rheumatic heart disease and digitalis poisoning. The incidence of pediatric arrhythmia and infection are closely related, so the key to prevention and treatment of pediatric arrhythmias is to prevent pediatric infectious diseases. Arrhythmia after the primary disease disappeared, only 1% of those who died of arrhythmia.