Objective — to devise a postpartum hemorrhage stopping procedure having better characteristics to maintain the anatomical and functional integrity of the uterus, to enhance the efficacy of treatment, to reduce the frequency of complications, and to ensure the simplicity, speed and safety of its performance in the critical situation of urgent surgery. Material and methods. The proposed procedure for stopping postpartum hemorrhage lies in that the myometrium of the placental site on the side of the uterine serous membrane is sewn with an assembly stitch that does not penetrate into the uterine cavity. The suture material captures one third of the myometrium of the placental site and it is tightened in a transverse direction by means of one-threaded purse-string sutures. Thus, the spiral arteries of the placental site are compressed, by minimally traumatizing the surrounding tissues and preserving blood flow in the major uterine artery branches providing the main blood supply to the muscles of the uterus. Unlike the known analogues, the proposed hemostatic external uterine supraplacental assembly suture does not reduce the volume of the uterine cavity. The clinical trials of the proposed procedure to stop postpartum hemorrhage in 5 patients demonstrated a considerable reduction in the number of hysterectomies by 5 times (p=0.02) and in the volume of blood loss by 1.7 times (p=0.03) as compared to the conventional approach (29 puerperas in the comparison group). Conclusion. The developed procedure for stopping postpartum hemorrhage is an effective, simple, and rapid method that causes no myometrial compression or ischemia. The authors declare no conflicts of interest.