Objective To understand the psychological state , labor and childbirth knowledge awareness in hospitalized pregnant women with 37 to 41 weeks gestation and effect on rate of cesarean section , and to put forward the corresponding countermeasures .Methods Two hundred hospitalized pregnant women were chosen and divided into the labor group in which the pregnant women felt contractions regularly and the cervical dilatation was more than 1 cm and the no labor group in which the pregnant women were threatened labor or without, each with 100 cases.The self-rating anxiety scale (SAS), the self-rating depression scale (SDS), and the questionnaire on the knowledge of labor and delivery were used in two groups , and the delivery outcome was investigated.Results The scores of SAS and SDS were respectively (49.21 ±6.09), (58.97 ±6.43) in the no labor group, and were higher than (42.96 ±5.61), (49.95 ±6.02) in the labor group, and the differences were statistically significant (t=3.074, 4.146, respectively;P<0.01).The incidence rates of anxiety and depression in the no labor group were higher than those in the labor group , and the differences were statistically significant (χ2 =7.14, 5.64, respectively;P<0.05).The qualification rate of mastering the knowledge of labor and delivery was 63.0%in the labor group, and was 27.0%in the no labor group, and the difference was statistically significant (χ2 =26.18, P<0.01).The cases of cesarean section were 65 in the no labor group including 44 cases cesarean section induced by social factors , and were 19 in the labor group including 8 cases cesarean section induced by social factors , and the difference was found in the rate of cesarean section in two groups (χ2 =43.44, P <0.01 ).Two groups of pregnant women in labor oxytocin utilization comparative difference was statistically significant (P<0.01).Conclusions The main causes of early admission in the without labor pregnant women are respectively the psychological state before labor and the awareness of the knowledge of labor and delivery .The situation of the psychological state before labor and the awareness of the knowledge of labor and delivery in the no labor group are worse than that in the labor group , and the psychological health during pregnancy should be strengthened , and the propaganda and education of the knowledge of labor and delivery should be increased .