Hemoptysis is a common emergency symptom for pulmonary embolism. It's important to differential diagnosis for this symptom. This article reports a case of pulmonary vein stenosis. The patient was transferred to a number of hospitals for medical treatment, but was misdiagnosed for 7 months. This article aims to improve clinician's ability to differentially diagnose hemoptysis, and to deepen the knowledge of pulmonary vein stenosis.