FIELD : medicine.SUBSTANCE : invention relates to medicine, namely to surgery, and may be used to eliminate high level rectovaginal fistulas. Cylindrical vaginal flap is mobilized, a fistulous passage, which is a continuation of the vaginal flap, is released to the intestinal wall without damage to its lumen, leaving the rectal wall intact. Selected cylindrical flap and fistulous passage are invaginated into the intestinal lumen, carrying out their ectopia in the rectum with the formation in its lumen of a long invaginated flap, leaving the fibrous walls of the fistulous passage and the mucous membrane of the vagina after "inversion" in the intestinal lumen. On the orifice of a cylindrical invaginated flap in the intestine stitches are put for its more reliable sealing, the wound in the vagina is sutured.EFFECT : method enables to reduce a risk of recurrence.1 cl, 1 ex