〔Abstract〕 Objective To investigate the value of abdominal aortic balloon occlusion in cesarean section of pregnant women with penetrating and dangerous placenta previa (DPP). Methods The clinical data of 104 pregnant women with penetrating and DPP treated in Nanyang Second People's Hospital from January 2016 to December 2020 were collected. According to whether the patients underwent abdominal aortic balloon occlusion, they were divided into an observation group and a control group, including 53 cases in the observation group and 51 cases in the control group. The amount of blood loss, blood transfusion, operation time, Apgar score of newborn, postoperative hysterectomy rate, postpartum hemorrhage, admission to intensive care unit (ICU) rate, incidence of lower limb arterial embolism and adverse pregnancy outcome were compared between the two groups. Results In the perioperative period, the amount of intraoperative blood loss, blood transfusion, hysterectomy rate, postpartum bleeding rate and ICU admission rate of puerpera in the observation group were lower than those in the control group, but the incidence of lower limb arterial embolism was higher than that in the control group, with statistical significances (P < 0.05). The Apgar score in the observation group was higher than that in the control group, and the difference was statistically significant (P < 0.05). The total incidence of adverse pregnancy outcomes in the observation group was lower than that in the control group, and the difference was statistically significant (P < 0.05). Conclusion Abdominal aortic balloon occlusion can significantly reduce the amount of bleeding during cesarean section for women with penetrating DPP, reduce the rate of hysterectomy and the incidence of complications, and improve the pregnancy outcome.