目的　观察微波放疗联合治疗骨继发性恶性肿瘤的效果。方法　 6 0例骨转移瘤患者随机分为两组 :微波放疗组 30例 ,单纯放疗组 30例。结果　微波放疗组的骨痛缓解、生活质量改善均优于单纯放疗组 ,两组差异有显著性 (U =1.96 8,2 .2 70 ,P <0 .0 5 ) ,两组的骨转移灶控制率分别为5 7%和 30 % ,两组差异有显著性 ( χ2 =4.34,P <0 .0 5 )。结论　微波放疗联合组对骨转移病灶的控制效果更佳 ,毒副作用小 ,患者均可耐受 ,值得临床应用和研究 Objective To observe the effect of microwave radiotherapy in the treatment of secondary malignant tumors. Methods Sixty patients with bone metastases were randomly divided into two groups: 30 cases in microwave radiotherapy group and 30 cases in radiotherapy alone group. Results In the microwave radiotherapy group, the bone pain relief and the quality of life improvement were better than the radiotherapy alone group, the difference between the two groups was significant (U = 1.96 8,2.270, P <0.05). The bone metastases The control rates were 57% and 30%, respectively, with significant difference between the two groups (χ2 = 4.34, P <0.05). Conclusion The combination of microwave radiotherapy has better control effect on bone metastases, little toxicity and side effects, and patients are tolerable, which is worthy of clinical application and research