Lung tumors should first be distinguished from benign and malignant, if the lungs are benign tumors, they do not have much impact on life. For malignant tumors of the lung, the average survival time depends on the specific pathological type and stage of the tumor. For stage I lung cancer with limited lesions, the median survival time after radical surgical resection can be up to 5-10 years or even longer. For stage II and III, that is, locally advanced lung cancer, the median survival time ranges from 2 to 5 years after comprehensive treatments such as surgery, radiotherapy, chemotherapy or targeted therapy. The so-called stage IV advanced stage with the appearance of distant organ metastases, the approximate survival time is about 6 to 8 months.