This invention relates to a double-balloon obstetric catheter. The double-balloon obstetric catheter includes a uterine balloon and a vaginal balloon that are provided, respectively, with a uterine-balloon axial tube and a vaginal balloon axial tube. The uterine-balloon axial tube is arranged coaxially within the vaginal-balloon axial tube with the possibility of fixing a change in a distance between the balloons along the longitudinal axis of the device. The vaginal balloon is attached to the distal end of the vaginal-balloon axial tube, and the shape of the distal end of the vaginal-balloon axial tube is adapted to the anatomical contours of the uterine neck. The catheter enables treatment of both prenatal and postnatal bleedings efficiently, as well as prevention of pathologic hemorrhages and infectious complications during caesarean sections.