Tumor of lower lobe of the lung can be treated by radiotherapy, and at the same time, drugs to slow down bone destruction and anti-tumor drugs can be used for treatment. 1. Using radiotherapy: the tumor of lower lobe of lung has metastasized to the waist and bone metastasis has occurred, which suggests that the patient’s condition is relatively serious, and radiotherapy can be chosen as a local treatment to avoid further growth of the tumor and alleviate the local symptoms. 2. Use of drugs to slow down bone destruction: it is necessary to use drugs to slow down bone destruction under the guidance of doctors to carry out treatment, such as zoledronic acid sodium. 3. Anti-tumor drugs: at the same time, according to the lung tumor, choose chemotherapy, targeted therapy and so on. If the condition of lumbar metastasis patients is more serious, when compression fracture occurs, it is necessary to take surgical system of internal fixation to avoid the occurrence of paralysis. Lung malignant tumor has occurred skeletal metastasis, it is recommended to consult the orthopedic surgery department of regular hospitals.