目的　探讨糖尿病病人院内感染的原因和预防措施。方法　对我院住院 340例糖尿病病人中发生院内感染的情况进行回顾性调查分析。结果　糖尿病院内感染 6 2例 ,感染率 18 2 % ,其中上呼吸道感染 31例 ,占 5 0 % ,泌尿系感染 16例 ,占 2 5 8% ,其余为胃肠道感染、皮肤感染、下呼吸道感染、口腔感染和中耳炎。结论　糖尿病易并发院内感染 ,且感染部位较多 ,与病人高血糖状态、防御功能减低、免疫力下降、并发症多有关 ,应加强控制院内感染。 Objective To investigate the causes and preventive measures of nosocomial infections in diabetic patients. Methods We retrospectively analyzed the incidence of nosocomial infections in 340 diabetic patients hospitalized in our hospital. Results There were 62 cases of nosocomial infections in the hospital with infection rate of 18.2%. Among them, 31 cases were upper respiratory tract infection (50%), 16 cases were urinary tract infection (25.8%), the others were gastrointestinal tract infection, skin infection, lower respiratory tract Infection, oral infections and otitis media. Conclusions Diabetes mellitus is more likely to be complicated by nosocomial infection and more sites of infection, which may be related to hyperglycemia, diminished defensive function, decreased immunity and more complications.