After chemotherapy for advanced lung cancer, the general survival period is about one year, and the five-year survival rate is only 5%, which can be different. Lung cancer is a common malignant tumor of respiratory system, which can be manifested by coughing and sputum, chest pain, hemoptysis and so on. In advanced stage, it is often accompanied by distant metastasis, such as bone metastasis and liver metastasis. Treatment for advanced lung cancer includes palliative surgery, chemotherapy, radiotherapy, targeted therapy, etc., but it can only prolong part of the survival period. Commonly used chemotherapeutic drugs include gemcitabine, vincristine, etc. Most patients with advanced lung cancer have a survival period of about one year after chemotherapy. It is recommended that patients with advanced lung cancer receive standardized treatment under the guidance of doctors to prolong the survival period and improve the quality of life.