Bone metastasis of small cell lung cancer is still necessary to be treated. Although the prognosis of bone metastasis of small cell lung cancer after treatment is poor, it can also alleviate the pain of patients to a certain extent, improve the quality of survival and prolong the survival period of patients. Bone metastasis of small cell lung cancer can be treated by chemotherapy, radiotherapy and so on: 1. Radiotherapy: radiotherapy is an important method to prolong the survival of patients with bone metastasis of small cell lung cancer, and it occupies a certain position in the treatment of patients with limited stage and extensive stage. Among all lung cancers, small cell lung cancer has the highest sensitivity to radiotherapy, and the addition of chest radiotherapy can also improve the survival of patients with limited stage. 2. Chemotherapy: chemotherapy can kill cancer cells in the body, especially for patients with rapid development of disease and early metastasis. Commonly used chemotherapeutic drugs for this disease are etoposide, platinum, irinotecan, etc. Moreover, if chemotherapy is effective and assisted by other treatments such as radiotherapy, it can effectively prolong the survival period of patients. Although the condition of small-cell lung cancer with bone metastasis is more serious, patients need to keep a good mindset and actively cooperate with doctor’s treatment, so as to reduce the pain as much as possible, improve the quality of life and prolong the survival period of patients. In addition to treatment, patients should also take good care of their diet and exercise.