voriconazole is recommended as first-line therapy for invasive pulmonary aspergillosis, however the efficacy and safety of voriconazole for treating invasive pulmonary aspergillosis secondary to COPD is not clear. This study aims to investigate the effectiveness and tolerability of intravenous voriconazole for treatment of invasive pulmonary aspergillosis in Chinese patients with COPD, by monitoring changes in clinical symptoms, eradication of aspergillus, improvement of chest imaging as well as record of possible adverse reactions following 2-week intravenous instillation of voriconazole.