目的： 了解胸科医院院内感染疾病发生情况，加强院内感染的控制。方法： 按照国家卫生部制定的《院内感染监测管理规范》实施，对１９９５ ～１９９７ 年院内感染监测资料进行了统计分析。结果： 本院严格按照《院内感染监测管理规范》要求实施后，院内感染率明显降低（２６ ％ ） 。院内感染疾病以上、下呼吸道感染为主（８９ ％ ） ；结核和呼吸内科前两位为上呼吸道和下呼吸道院内感染，分别为７０ ％ ～７０４ ％ 和２０ ％ ～２２４ ％ ；外科为上呼吸道和外科手术切口感染，分别为５０ ％ 和３２４ ％ ；感染细菌菌株中Ｇ－ 菌占９４９ ％ ，主要菌株为绿脓杆菌（３０９ ％ ） 、肺炎克雷白氏菌（１２５ ％ ） ，真菌感染菌珠主要为白色念珠菌（４５７ ％ ） 、热带念珠菌（１７５ ％ ） ，混合两种以上菌株感染占２０５ ％ 。结论： 胸科医院应加强呼吸道院内感染的控制，即加强空气消毒工作，外科同时应重视手术切口感染的控制工作，使院内感染率降到最低水平。同时院内感染以抗Ｇ－ 菌治疗的同时及时根据药敏结果选用敏感药物治疗，达到最好治疗效果 Objective: To understand the incidence of nosocomial infections in thoracic hospitals and to strengthen the control of nosocomial infections. Methods: According to the “Norm of Nosocomial Infection Management” formulated by the Ministry of Health, the data of nosocomial infection surveillance from 1995 to 1997 were analyzed statistically. Results: In our hospital strictly in accordance with “nosocomial infection monitoring and management practices,” the implementation of requirements, the hospital infection rate was significantly reduced (2.6%). Nosocomial infection and above, lower respiratory tract infection (89%); tuberculosis and respiratory medicine the first two were upper respiratory tract and lower respiratory tract infections, were 70% to 70 4% and 20% to 22 4%; surgery The infection rates of upper respiratory tract and surgical incision were 50% and 324% respectively. The G-bacteria in infected bacterial strains accounted for 949%, the main strains were Pseudomonas aeruginosa (309%), Klebsiella pneumoniae Candida albicans (457%) and Candida tropicalis (175%) were the main fungi in fungi and 205% in mixed strains of two or more strains. Conclusion: Thoracic Hospital should strengthen the control of respiratory nosocomial infection, that is, to strengthen the air disinfection work, surgery should pay attention to the control of surgical incision infection, the nosocomial infection rate to a minimum level. At the same time nosocomial infection with anti-G-bacteria treatment at the same time based on susceptibility results of the selection of sensitive drug treatment, to achieve the best therapeutic effect