How long can elderly people live with advanced lung cancer? Generally, if it is simple lung cancer, the time is about 1 year, rarely more than 1.5 years. If lung cancer is combined with systemic bone metastasis, pain is more obvious, accompanied by progressive failure, malnutrition, and prolonged bed rest, generally the time is hardly more than 1 year, or even about 6 months. If advanced lung cancer is accompanied by intracranial metastasis, nausea, vomiting, headache and inability to eat, the patient’s progressive failure hardly exceeds 1 month. How long can lung cancer live in late stage is related to the cytological typing of lung cancer. If it is squamous cancer that loses the chance of surgery and the effect of chemotherapy is less satisfactory, the survival period is about half a year. If an elderly person with adenocarcinoma of the lung, especially a woman, is positive for gene mutation as indicated by gene targeting test, gene targeting drug treatment can be given and the survival period of the elderly with advanced adenocarcinoma of the lung may be extended, even more than 1 year, 2 years or even longer. Therefore, the length of life for advanced lung cancer depends on the patient’s general condition and the specific treatment plan, and it also depends on whether it is adenocarcinoma or squamous cancer, especially if the adenocarcinoma is positive for gene targeting test to improve survival.