采用聚合酶链反应，检测１６１例孕妇外周血巨细胞病毒（ＣＭＶ）感染状况。结果：血ＣＭＶ－ＤＮＡ阳性３１例，阳性率１９．２５％，其中正常孕妇１５０例，阳性率１８．７％（２８／１５０），有异常妊娠史孕妇１１例，阳性率２７．３％（３／１１）。正常孕妇妊娠早、中、晚三期的阳性率分别为１９．４％、２３．５％、１３．３％，其差异无统计学意义。孕妇ＣＭＶ感染与年龄无关，与上呼吸道感染关系密切，对有异常妊娠史和上呼吸道感染的孕妇应重点观察 Polymerase chain reaction was used to detect the infection status of cytomegalovirus (CMV) in 161 pregnant women. Results: The positive rate of CMV-DNA in blood was 31 cases, the positive rate was 19.25%. The normal pregnant women were 150 cases, the positive rate was 18.7% (28/150). There were 11 pregnant women with abnormal pregnancy history, the positive rate was 27.3% 3/11). The positive rates of the third trimester pregnancy in normal pregnant women were 19.4%, 23.5% and 13.3% respectively, with no significant difference. CMV infection in pregnant women has nothing to do with age, and is closely related to upper respiratory tract infection, pregnant women with abnormal pregnancy history and upper respiratory tract infection should focus on observation