目的　探讨肺动脉栓塞的临床表现、诊断与治疗。方法　根据临床表现、发病诱因及肺通气 /灌注扫描或肺动脉造影确诊。以溶栓、抗凝等方法治疗。结果　急性肺动脉栓塞的常见诱因是下肢静脉栓塞 ,最常见的症状是活动后呼吸困难、胸痛、咯血。动脉血气分析是肺栓塞重要的筛选方法。 11例患者放射性核素肺扫描均证实存在肺栓塞。静脉溶栓结合抗凝治疗是目前最常用和有效的治疗方法。结论　肺栓塞是常见的心肺疾病 ,及时正确诊治可以降低死亡率 Objective To investigate the clinical manifestations, diagnosis and treatment of pulmonary embolism. Methods According to clinical manifestations, incidence of incentives and pulmonary ventilation / perfusion scan or pulmonary arteriography confirmed. Thrombolysis, anticoagulation and other methods of treatment. Results A common cause of acute pulmonary embolism was venous thrombosis of the lower extremities. The most common symptoms were dyspnea, chest pain and hemoptysis after the activity. Arterial blood gas analysis is an important screening method for pulmonary embolism. Eleven patients with radionuclide lung scan confirmed the presence of pulmonary embolism. Intravenous thrombolysis combined with anticoagulant therapy is currently the most commonly used and effective treatment. Conclusion Pulmonary embolism is a common cardiopulmonary disease, timely and correct diagnosis and treatment can reduce mortality