1970—1978年本所胸外科手术治疗肺癌107例随访至1988底生存10年以上有33例,10年生存率为30.84％。本文认为下列因素与肺癌术后长期生存有关。1.年龄:33例中50岁左右者占78％。其预后优于40岁以下,60岁以上者。2.临床症状:60％Ⅰ期。80％Ⅱ期和100％Ⅲ期有症状,提示症状有无与预后有关。3.肿瘤外侵及大小:33例中仅4例肿瘤有外侵,肿瘤外侵后易引起广泛血行淋巴转移 From 1970 to 1978, thoracic surgical treatment of lung cancer in 107 patients was followed up to the end of 1988 to survive more than 10 years in 33 cases, the 10-year survival rate was 30.84%. This article believes that the following factors are related to long-term survival after lung cancer surgery. 1. Age: 78% of the 33 cases were about 50 years old. Its prognosis is better than those under the age of 40 and those over the age of 60. 2. Clinical symptoms: 60% of phase I. 80% of stage II and 100% of stage III are symptomatic, suggesting that symptoms are associated with prognosis. 3. Invasion and size of tumor: Only 4 out of 33 cases had external invasion. After tumor invasion, extensive blood lymphatic metastasis was easily caused.