Early stage of lung cancer usually does not have bone metastasis and other distant metastasis, but the lesion is limited in this period, with the progress of the disease, bone metastasis may occur, and once bone metastasis occurs, it is advanced stage of lung cancer. Lung cancer is a malignant tumor of respiratory system caused by heredity, gene mutation, smoking and other factors. Early stage of the disease often has no specific clinical manifestations, such as cough, sputum, chest pain, etc. With the progress of the disease, distant metastasis, such as bone metastasis, can occur in late stage, and then there can be clinical manifestations such as bone pain, localized mass, pathological fracture, etc. The later the stage of lung cancer, the more the disease is staged, and the more the disease is confined, the more the disease will be treated. The later the stage of lung cancer is, the more complicated the condition is, and the worse the prognosis is. Therefore, patients should be alert to the early discomfort and go to the hospital for standardized diagnosis and treatment in time in order to get a better prognosis and prolong the survival time.