The maximum life expectancy of non-small cell carcinoma patients is mainly related to the stage of cancer and treatment methods, which should be analyzed on a case-by-case basis and should not be generalized. For early-stage non-small cell carcinoma, patients can undergo radical surgery and choose to use radiotherapy, chemotherapy and targeted drugs after surgery according to the pathological examination results, the overall five-year survival rate can be extended to about 30%-50%, and the maximum survival time varies from person to person. In the case of advanced non-small cell carcinoma, patients are unable to undergo surgery and the maximum survival time cannot be specified, and the overall five-year survival rate is about 10%-20%. Therefore, patients with non-small cell carcinoma need to go to the medical oncology department of a regular hospital in time to have a practical treatment plan formulated by a professional doctor. Meanwhile, patients should adjust their mindset and actively cooperate with treatment in order to prolong their survival time.