Pulmonary edema is a potentially life-threatening complication of acute airway obstruction that develops rapidly without warning in persons who are otherwise well. Respiratory abnormalities have been reported in patients with Parkinson's disease, especially obstructive airway. To our knowledge, pulmonary edema secondary to airway obstruction in patients with Parkinson's disease has not been reported previously. Here, we describe a case of Parkinson's disease complicated with pulmonary edema, and airway obstruction might be the mechanism.