Abstract: Objective To investigate the effect of pull-up cervical suture on hemostasis in patients with dangerous placenta previa. Methods A total of 102 patients with dangerous placenta previa were selected as research objects, and were divided into two groups by computer random grouping. A total of 51 cases in the control group was given intermittent suture of the cervix to stop bleeding, while the observation group was given pull-up cervical suture. Postpartum blood loss, treatment condition, and adverse reactions of two were compared. Results The operative time and hemostasis time of the observation group were significantly shorter, and the intraoperative blood loss was significantly less than that of the control group(P<0.05). The plasma input amount and erythrocyte suspension input amount of the observation group were significantly lower than those of the control group(P<0.05). The postoperative 24 h vaginal bleeding volume of the observation group was significantly less, and the length of hospital stay was significantly shorter than that of the control group(P<0.05). The puerperal infection rate in the observation group was significantly lower than that in the control group(P<0.05). The uterine resection rate showed no significant difference in the two groups(P>0.05). Conclusion Pull-up cervical suture in the treatment of patients with dangerous placenta previa can effectively improve the hemostasis effect, shorten the operation time, reduce the occurrence of puerperal infection, and promote postoperative early recovery.