목적: To assess the outcomes of microsurgery using a microdebrider for laryngeal papillomatosis 방법:This hospital-based case-control study analyzed 25 cases of laryngeal papillomatosis diagnosed at the Department of Otolaryngology, First Central Hospital of Mongolia, between June 2023 and January 2025. All patients underwent microsurgery using a microdebrider. 결과:A total of 25 cases were studied, with patients ranging in age from 21 to 81 years (mean age: 44.63 15.85 years). Of these, 15 (62.5%) were male and 9 (37.5%) were female. The time frame for diagnosis ranged from 1974 to 2022, and 19 (79.1%) of the cases had a history of repeated surgery, with an average of 22.96 36.75 previous procedures. The mean operative time was 26.04 16.81 minutes, and the postoperative hospital stay averaged 3.02 0.83 days. The postoperative voice score (GRBAS/VHI) was 4.71 1.97, indicating significant improvement in voice quality after surgery. Gender and smoking status did not significantly affect surgical outcomes (p > 0.05). Patients with severe preoperative voice impairment and dyspnea were more likely to undergo multiple surgeries (r = 0.71, p < 0.05). Multivariate regression analysis showed that cough and difficulty swallowing negatively affected postoperative voice quality, but this effect was not statistically significant (p = 0.067). 결론:Microdebrider-assisted microsurgery has been shown to be highly effective for laryngeal papillomatosis. It allows for shorter surgical times, improved voice quality, fewer postoperative complications, and an overall enhancement in quality of life. This technique represents a significant advancement in the management of recurrent laryngeal papillomatosis and helps reduce long-term recurrence.