Given the increasing number of patients suffering from COPD and the high prevalence of anxiety and depression in the population, the current study was designed to examine the efficacy of CBT in groups for anxiety and depression in patients with COPD. At present, CBT-based interventions focusing on mental health symptoms are not widely available for COPD patients, and the potential of CBT for improving emotional well-being is not systematically considered in existing treatment alternatives. The study expands the findings from previous pilot studies by focusing on COPD patients with clinically significant levels of anxiety and depression. The wide breadth of coping skills included in the CBT intervention target symptoms of both anxiety and depression, and thus the utility of the intervention for managing mental health symptoms is not restricted to any specific DSM-IV diagnosis.