Results For the township health centers and community health service centers, the proportions of institutions with gynecology departments were 72.79% (3 448/4 737) and 79.51% (1 327/1 669) and proportions of those with obstetrics departments were 29.07% (1 377/4 737) and 14.92% (249/1 669), respectively; the proportion of the community health service centers with practicing obstetricians and gynecologists was 82.92% (1 384/1 669), higher than that (61.98%, 2 936/4 737) of the township health centers. The provision of obstetrics and gynecology services in the primary medical institutions was relatively low in quality and quantity. For example, the proportions of township health centers and community health service centers providing midwifery for women with singleton delivery were 22.38% (1 060/4 737) and 10.37% (173/1 669), respectively, with an average daily service of less than one midwifery process. The equipment allocation rates for automatic biochemical analyzers and other related instruments were above 80% for all the primary institutions. The proportions of township health centers and community health service centers supplied with at least one type of drugs on uterine contraction were 51.11% (2 421/4 737) and 49.13% (820/1 669) respectively. The results of multivariate linear logistic regression analysis showed that region, number of staff in active service, number of beds available, proportion of pregnant women with contracted service, and equipment of color Doppler ultrasound instrument had significant influence on the rates of pregnant women registration in first trimester and postpartum visit; the establishment of gynecology departments only had a significant impact on the rate of postpartum visitation.