In the study 38 cases of primary lung cancer with postoperative recurrence and metastasis or second primary lung cancer, re-resection was performed. The time interval between the first operation and re-resection was 2 months -- 9 years. The resectivility rate was 89.5%. Postoperative complication rate was 23.7% and the operative mortality rate within 1 months was 5.3%. With radical re-resection 1-, 3-, 5- year survival rate were 80%, 45.8% and 35% respectively. The survival time depends more on the thoroghness of resection than on the histologic type of the tumor and the time interval. It is of the opinion that wherever recurrence and/or metastasis occur. Radical re-resection is the treatment of choice.