〔Abstract〕 Objective To explore the effect of abdominal aortic balloon occlusion in cesarean section for dangerous placenta previa. Methods The subjects of the study were 56 women with dangerous placenta previa who gave birth at the Luoyang Central Hospital Affiliated to Zhengzhou University from February 2017 to February 2020. They were divided into a control group (28 cases) and an observation group (28 cases) using random number expression, the control group underwent conventional cesarean section, and the observing group received abdominal aortic balloon occlusion before cesarean section. Intraoperative indexes (bleeding volume, blood transfusion volume, and hysterectomy rate) and neonatal conditions (body weight and asphyxia rate) were compared between the two groups. Results The amounts of bleeding and blood transfusion in the observation group were significantly less than those in the control group, and the differences were statistically significant (P < 0.05). The rate of hysterectomy in the observation group was lower than that in the control group, and the difference was statistically significant (P < 0.05). There was no significant difference in the weight and asphyxia rate of newborns between the two groups (P > 0.05). Conclusion For women undergoing cesarean section with dangerous placenta previa, abdominal aortic balloon occlusion can help reduce intraoperative blood loss and blood transfusion, reduce the rate of hysterectomy, and has a certain degree of safety.