目的了解急诊抢救中患者发生医院感染的程度和原因。方法对９８３例危重病患者急救中感染问题进行回顾性调查分析。结果急诊抢救中患者总感染发生率为２１．１％，以呼吸道为主占５８．５％，心脏骤停及心肺脑复苏术后感染率高达６０．９％，气管插管后感染率为５０．５％，感染患者病死率为３２．４％。结论在急诊抢救中因患者病情病危或伴有意识障碍，感染发生率明显增高；医源性因素也是引发医院感染的主要原因之一。 Objective To understand the extent and causes of nosocomial infections in emergency salvage patients. Methods 983 critically ill patients with first aid in the infection were retrospectively analyzed. Results The rate of total infection in emergency rescue was 21.1%, mainly in respiratory tract, accounting for 58.5%. The rate of infection after cardiac arrest and cardiopulmonary resuscitation was as high as 60.9%. The infection rate after tracheal intubation was 50 .5%, the case-fatality rate of infected patients was 32.4%. Conclusions In the emergency rescue, the incidence of infection is obviously increased due to the patient’s condition or unconsciousness. Iatrogenic factors are also one of the main causes of nosocomial infection.