The invention relates to medicine, in particular to maxillofacial surgery and implantology, and can be used for increasing the height of the upper jaw bone for installing intraosseous implants.Summary of the invention consists in that before performing the surgical intervention, 20…40 ml of blood is sampled from the patient to form a thrombus, then is performed the local-regional anesthesia, is performed a horizontal incision of the oral mucosa and periosteum 2 mm from the apex of the alveolar process in the direction of the palatine bone or on the apex of the alveolar process, then the lines of vertical incisions start surrounding the dentogingival groove of the teeth at the border with the access and up to the bottom of the vestibular sac. Using the radiogram, the bottom of the maxillary sinus and the level of vertical lines are assessed, then is detached the muco-periosteal flap using a scraper, and using a spherical dental cutter with a rotation of 800…1200 rpm is made a hole for access of trapezoid or oval shape with the landmark according to the radiological template located 2 mm or more above the lower wall of the sinus, then the Schneider membrane is detached and raised from the bottom with the formation of an augmentation space, on the upper edge of the raised membrane in the anteroposterior direction are introduced two metal rods with a diameter of 2 mm, and the formed space is filled with the prepared thrombus, the access hole is covered with a biological absorbable biopolymer membrane containing collagen, and the muco-periosteal flap is returned to the surface of the bone and sutured with separate nonabsorbable sutures.