Abstract: Objective To explore the influence of hypertensive disorders in pregnancy(HDP)for elderly primiparas. Methods A total of 125 senile singleton primiparas in our hospital were selected as research objects, among whom 34 senile singleton primiparas with HDP were selected as observation group, and 91 senile singleton primiparas without HDP were selected as control group. The incidence of pregnancy-induced comorbidities, complications and perinatal adverse outcomes were compared between the two groups. Results There were no differences between the two groups in complicating diseases in pregnancy such as thyroid disease, diabetes, blood system disease, heart disease(P>0.05). There were no significant differences between the two groups in incidence of complications such as postpartum hemorrhage, placental abruption, premature delivery(P>0.05). The incidence rates of oligohydramnios, low body weight and fetal growth restriction in the observation group were significantly higher than that in the control group(P<0.05). There were no significant differences in the incidence rates of asphyxia and fetal macrosomia between the observation group and the control group(P>0.05). Conclusion HDP has adverse effects on the fetus of elderly primiparas. Regular prenatal examination, and enhanced monitoring should be done.