使用医用加速器高能Ｘ射线单放及放化（ＣＯＰ、ＣＡＰ、ＣＯＡＰ）治疗原发性肺癌４５例，按实体瘤通用疗效判定标准，以ＣＲ（Ｃｏｍｐｌｅｔｅ　ｒｅｓｐｏｎｓｅ完全缓解）和ＰＲ（Ｐａｒｔｉａｌ　ｒｅｓｐｏｎｓｅ部份缓解）为有效。单纯放疗组１７例，Ⅱ、Ⅲ、Ⅳ期有效率（ＣＲ＋ＰＲ）分别为８８％、８０％、３３％；放化组２８例，Ⅱ、Ⅲ、Ⅳ期有效率分别为１００％、９２％、５７％。放疗与放化疗二组近期疗效对比无显著差异（Ｐ＞０．０５），但本文仍赞同放疗加化疗的综合治疗，以提高生存率。 The use of medical accelerator high-energy X-ray radiotherapy and radiotherapy (COP, CAP, COAP) in the treatment of primary lung cancer in 45 cases, according to the general efficacy evaluation criteria of solid tumor, CR (Complete response complete response) and PR (Partial response partial remission ) is valid. In the radiotherapy alone group, 17 cases had effective rates (CR+PR) of 88%, 80%, and 33% in group II, III, and IV, and 28 cases in radiochemotherapy group. The effective rates in stage II, III, and IV were 100% and 92%, respectively. 57%. There was no significant difference in the short-term efficacy of radiotherapy and radiotherapy between the two groups (P>0.05), but this article still approves of radiotherapy and chemotherapy combined therapy to improve survival.