목적: : Cognitive behavioral therapy is a recommended treatment for tinnitus, with recent attempts incorporating mindfulness meditation. This study aimed to evaluate the efficacy of mindfulness-based cognitive therapy (MBCT) in improving tinnitus symptoms. 방법:From June to November 2024, 20 adults with subjective tinnitus were prospectively enrolled after excluding those with identifiable causes, severe hearing loss, or other otologic conditions. Participants underwent five 60-minute MBCT sessions over five weeks. Tinnitus Handicap Inventory (THI) scores, subscales (THI-F, THI-E, THI-C), and Visual Analogue Scale (VAS) metrics (awareness, loudness, annoyance, and life impact) were assessed pre-treatment and two weeks post-treatment. Quality of life was measured using the Korean Warwick-Edinburgh Mental Wellbeing Scale (WEMWBS). 결과:The average age of the 20 participants in this study was 56.40 ± 16.71 years, with 8 males and 12 females. THI significantly improved (41.00 ± 20.02 to 31.9 ± 20.49, P = 0.005), with reductions in THI-F (P = 0.012) and THI-E (P = 0.049), but not THI-C (P = 0.081). Treatment success (≥7-point THI reduction) was achieved in 65% of participants. VAS-AN (P = 0.018) and VAS-EOL (P = 0.022) improved significantly, while VAS-AW and VAS-LD showed no changes. WEMWBS scores increased from 48.80 ± 14.58 to 54.65 ± 13.83 (P = 0.005). 결론:MBCT effectively alleviates tinnitus-related distress, improves quality of life, and demonstrates high compliance, making it a promising therapeutic option for tinnitus management.