Objective To explore the factors that influence the outcomes of pregnancy in placental abruption so as to improve the ability of early diagnosis and treatment of placental abruption.Methods The clinical data on seventy-two cases of placental abruption treated at Army General Hospital between January 2010 and January 2016 were retrospectively reviewed. The causes of placental abruption and the influence of hypertensive disorders and standard checkups on pregnancy outcomes were analyzed.Results The severity of placental abruption depended on three important factors: hypertensive disorders in pregnancy, standard checkups and the interval between the onset of the first initial clinical sign and delivery. Severe cases of placental abruption(1-120 h) took a longer time to treat than minor ones(1-51.5 h),and the difference was statistically significant(P<0.05).The incidence of postpartum hemorrhage(38.5%,40.7%), acute kidney injury(11.5%,11.1%), premature birth (70.4%,72.4%)and low birth weight baby (59.3%,68.9%)in cases with gestational hypertension group and non-standard checkup group was significantly higher than in control group (P<0.05).There were four cases of severe placental abruption and all the perinatal infants died.Conclusions We can improve the pregnancy outcome of placental abruption by identifying the causes, standardizing checkups during pregnancy and ensuring early diagnosis and treatment.