目的:了解各级医疗保健机构和妇产科医生提供预防艾滋病(AIDS)、梅毒(TP)母婴传播服务及相关影响因素。方法:通过函调和现场调查方式,对贵州省医疗保健机构提供服务情况和部分妇产科医生掌握干预技术情况及影响因素进行调查。结果:贵州省孕产妇HIV、TP检测率分别为95.59%、94.96%,达到全国平均水平,但孕期HIV检测率仅44.72%;HIV阳性孕产妇用药率仅61.29%;TP孕产妇治疗率68.19%,婴儿预防性治疗率65.53%。问卷调查结果显示,妇产科医生对HIV阳性干预知识掌握较好,但在HIV检测流程、检测结果告知、TP阳性干预以及阳性追访等方面掌握较差。妇产科医生知识技能掌握情况与年龄、学历,特别是接受培训情况密切相关(P=0.012,<0.05)。结论:加强培训特别是注重科室内培训、县级培训,对提高妇产科医生掌握母婴传播技术、规范提供干预服务具有重要意义。 Objectives: To understand the health care delivery services and related factors for AIDS prevention and syphilis (TP) transmission among healthcare providers and obstetricians at all levels. Methods: By means of correspondence and on-the-spot investigation, this paper investigated the service provided by health care institutions in Guizhou Province and some obstetrics and gynecology doctors to intervene in intervention techniques and their influencing factors. Results: The detection rates of HIV and TP among pregnant women in Guizhou Province were 95.59% and 94.96%, respectively, reaching the national average level, but the detection rate of HIV in pregnancy was only 44.72%; the rate of HIV positive pregnant women was only 61.29%; the treatment rate of TP pregnant women was 68.19% Preventive treatment of infants 65.53%. The results of the questionnaire survey showed that obstetrics and gynecologists had a good knowledge of HIV-positive interventions, but they were poorly controlled in HIV testing procedures, test results notification, TP-positive interventions and positive follow-up. Obstetrics and gynecologists knowledge and skills mastery and age, education, especially training is closely related (P = 0.012, <0.05). Conclusion: Strengthening training, especially focusing on departmental training and county-level training, is of great significance to improving obstetrics and gynecologists’ mastery of mother-to-child transmission technology and regulating intervention services.