Benign ovarian pathology remains a significant disorder in women who are in reproductive age in the world. During the last decades laparoscopic treatment has been established as a routine method of benign ovarian masses. Adhesion prevention, less operative pain and cosmetic better results are some of the most important advantages of this proceed. Since 2010, laparoscopic surgery has been implemented in our hospital, and it is necessary to expand in the future. In 2014 total of 286 cystectomy were done and 50 cases from them were held by laparoscopy at First Maternity Hospital. In Mongolia laparoscopic surgery cases are few and there is no study relating to this situation. Purpose of this study was to investigate whether laparoscopy could replace safe and effective surgical treatment of benign ovarian pathology. 50 women with benign adnexal cysts, laparoscopically treated in the Department of Gynecologic surgery of First Maternity Hospital in 2014 were included. This is a prospective study which used questionnaire with 24 questions.The mean age of presentation was 31 years. Ovarian cysts were more commonly seen in the age group 18-35 years. The diagnosis in 28 (56%) cases was endometriosis of the ovary, 1 (2%) serous cystadenomas, 9 (18%) dermoid ovarian cyst, 9 (18%) follicular cysts and 6 (12%) paraovarian cysts. Serum level of CA-125 measured before the surgery : high- 7(14%), normal- 26(52%) and 17(34%)- cases not measured. Pain improvement after surgery- 90% of the patients had no pain, 4% were with wound pain, and 6% were with pelvic pain. It was proven the advantage of the laparoscopic surgery Patients hospital stay: 72%-1 day, 24%- 2 days and 4%- 3 days. Laparoscopic surgery seems to offer significant advantages such as reduced hospital stay, less adverse effects, better quality of life, and superior vision especially on surgical treatment of cases like endometriosis.