Objective To observe the clinical effect of Yanshu compound radix sophore injection combined with radiotherapy in treatment of patients with bone metastases from lung cancer. Methods A total of 116 patients with bone metastases from lung cancer admitted to the Department of Radiation Oncology of Gansu Provincial Cancer Hospital from January 2014 to December 2018 were selected. The 58 patients were treated by using three-dimensional conformal radiotherapy (3D-CRT), zoledronic acid and oxycodone sustained-release tablets (control group); the others 58 patients were treated radix sphore injection on basis of control group (integrated Chinese and western medicine). The two groups were treated continuously for 10 days as 1 course of treatment, taking a rest for one week in the middle, then they took the second course of treatment; after the end of 2 courses, the therapeutic effects were evaluated in the two groups. The pain grading, Karnofsky functional status (KPS) score and myelosuppression were observed before and after treatment in two groups, respectively. Results The proportions of patients with painless and mild pain after treatment in the integrated Chinese and western medicine group were significantly lower than those in control group [painless: 22.41% (13/58) vs. 39.66% (23/58), mild pain: 10.35% (6/58) vs. 46.55% (27/58)], while the proportions of patients with moderate pain and severe pain in the integrated Chinese and western medicine group were significantly higher than those of the control group [moderate pain: 53.45(31/58) vs. 12.07% (7/58), severe pain: 13.79% (8/58) vs 1.72% (1/58), both P < 0.05]. After treatment, the proportion of patients with improved KPS score in integrated Chinese and western medicine group was significantly higher than that in control group [55.17% (32/58) vs. 36.21% (21/58), P < 0.05], and the proportion of patients with stable and decreased KPS score were less than that of control group [stable KPS score:18.97%(11/58) vs. 27.59%(16/58), decreased KPS score:25.86% (15/58) vs. 36.21% (21/58)]. The proportions of patients with blood cell count (WBC), hemoglobin (Hb) and platelet count (PLT) showing no myelosuppression (at the zero degree) after treatment in integrated Chinese and western medicine group were obviously higher than those in control group [WBC: 77.59% (45/58) vs. 36.21% (21/58), Hb: 77.59% (45/58) vs. 70.69% (41/58), PLT: 58.62% (34/58) vs. 32.76% (19/58), all P < 0.05]. Conclusion Yanshu compound radix sphore injection combined with radiotherapy can reudce bone metastasis pain, reduce bone marrow suppression and improve quality of life in patients with advanced lung cancer and bone metastasis.