目的 分析探究放射技术诊断肺部肿瘤的效果。方法 以2011年1月至2019年6月为研究时间段，将该时间段我院收治的疑似肺部肿瘤患者50例作为研究对象，采集患者的X线检查+CT检查结果，与实验室痰脱落细胞检查结合纤维支气管镜检查结果进行对比，计算其诊断准确率。结果 50例疑似肺部肿瘤患者的痰脱落细胞检查结合纤维支气管镜检查结果为：肺错构瘤16例，中央型肺癌15例，周围型肺癌12例，转移型肺癌7例，而X线联合CT检查的诊断结果为，肺错构瘤16例，准确率为100%，但是在剩余34例恶性肿瘤的诊断中，有1例转移行“,”Objective To analyze and explore the effect of radiology in the diagnosis of lung tumors. Methods From January 2011 to June 2019， 50 patients with suspected lung tumors in our hospital were selected as the research objects. The results of X-ray and CT were collected and compared with those of sputum exfoliated cells and fiberoptic bronchoscopy in the laboratory. The diagnostic accuracy was calculated. Results The results of sputum exfoliated cells examination combined with fiberoptic bronchoscopy in 50 suspected pulmonary tumors were as follows: 16 cases of pulmonary hamartoma， 15 cases of central lung cancer， 12 cases of peripheral lung cancer and 7 cases of metastatic lung cancer. The diagnostic results of X-ray combined with CT were 16 cases of pulmonary hamartoma， the accuracy was 100%， but the remaining 34 cases were malignant. In the diagnosis of tumors， 1 case of metastatic lung cancer was misdiagnosed as central lung cancer. The diagnostic accuracy was 98.00%. Conclusion Radiation technology has high accuracy in diagnosing pulmonary tumors. It can accurately acquire the location， size and shape of tumors， and provide reliable reference for clinical treatment. It has the advantages of simple operation， safety and non-invasive technology， and has high application value in clinical practice.