ABSTRACT Tubal-peritoneal infertility is caused by anatomical and functional lesions of the fallopian tubes and pelvic peritoneum. Tubal-peritoneal form of infertility according to different authors is 30—74% in the structure of female infertility. In most women, the cause of tubal occlusion is an inflammatory process initiated by genital infection. Objective — to determine the diagnostic value of instrumental methods of research at the tubal-peritoneal factor infertility. Material and methods. 126 patients with tubal-peritoneal infertility were examined and treated (mean age 28.4±2.3 years). Comprehensive examination included anamnestic data analysis, hysterosalpingography, hysteroscopy, ultrasound and laparoscopic examination. Results. In 118 (93.7%) patients, hysterosalpingography revealed a uterus with smooth contours, in 6 (4.8%) – intrauterine synechiae, in 113 (89.7%) – radiological signs of adhesions in the pelvis, in 23 (18.2%) – patency of the fallopian tubes is difficult, in 40 (31.8%) — fallopian tubes are impassable, in 31 (24.7%) hydrosalpinxes were found. Small pelvic ultrasound revealed myomatous nodules in 4 (3.1%) patients, endometrial polyps in 5 (3.9%), chronic endometritis in 39 (31.0%) patients, and intrauterine splices in 7 (5.5%) patients. Laparoscopy was performed in all 126 patients, while the adhesive process of I—II degree of severity was found in 75 (59.6%), III—IV degree — in 51 (40.4%) patients. If chromopertubation the patency of the fallopian tubes preserved in 57 (45.2%) women, one or both of the pipes were not passable in 38 (30.1%) cases. In 21 (16.7%) patient detected endometrioid heterotopias, 9 (7.1%) — seasonale, 107 (85.0%) — periovarian adhesions in 16 (12.7%) — follicular cysts of the ovaries. Simultaneously with laparoscopy, hysteroscopy was performed in 85 (67.4%) patients in I and 41 (32.6%) — in phase II of the menstrual cycle. Endometrial polyps were found in 4 (3.1%) patients and intrauterine splices in 12 (9.6%) patients. Histological examination of the endometrium revealed endometrial polyps in 4 (3.1%) patients, endometrial hyperplasia in 3 (2.3%), chronic endometritis in 24 (19.0%). Conclusion. The most accurate method of diagnosis was a laparoscopy: 23.0% detected hydrosalpinx, at 30.1% of pipes are impassable, at 85.8% — perfumaria adhesions, 15.9% — seasonale.