通过2000例孕妇的孕前体重及其中1905例孕期体重增加与新生儿体重的关系作回顾性分析,并经统计学处理。结果表明,母孕前体重过重者其新生儿平均体重大于其他组(P<0.01);其巨大儿的发生率也明显高于其它组(P<0.01)。另母孕期体重过增者占全组的72.3%,其新生儿平均体重亦大于其它组,巨大儿发生率也高(P<0.05)。胎儿体重是决定分娩是否顺利的重要因素之一,本组难产率高达46%,尤以过重组与过增组剖宫产率明显高于其它组。为了优生,降低母婴并发症,孕期注意适当的营养和体重增长至关重要。 Through 2000 pregnant women’s pre-pregnancy weight and 1905 pregnancy weight gain and neonatal weight for retrospective analysis, and the statistical analysis. The results showed that the average weight of newborn babies who were overweight before pregnancy was significantly higher than that of other groups (P <0.01). The incidence of macrosomia was also significantly higher than that of other groups (P <0.01). Another mother of overweight during pregnancy accounted for 72.3% of the group, the average weight of newborns is also greater than other groups, the incidence of giant children is also high (P <0.05). Fetal weight is one of the important factors that determine the smooth delivery, the group of refractory rate as high as 46%, especially over-re-group and over-cesarean section rate was significantly higher than the other groups. In order to eugenics, reduce maternal and child complications, attention to proper nutrition and weight gain during pregnancy is essential.