Radiotherapy for squamous lung cancer can be divided into two categories: radical radiotherapy and palliative radiotherapy, which utilizes radiation to kill cancer cells. After surgical treatment of squamous lung cancer, appropriate radiotherapy program should be selected according to the clinical stage of squamous lung cancer. Radical radiotherapy is usually used for those with limited lesions, who are inconvenient or inoperable, and the efficacy can be improved if supplemented with chemotherapy; palliative radiotherapy can inhibit the development of lung tumors, can effectively delay the spread of lung tumors, and can also relieve the symptoms. Before radiotherapy, it is usually necessary to assess the patient’s tolerance, and in general, the examination items include clinical signs, pulmonary ventilation function and blood routine, etc. For details, please consult your physician.