The first step in the diagnosis of lung cancer is characterization, which must be made pathologically. The second step is periodic, which is the early or late stage of the disease (with or without metastasis). Then the best treatment plan is formulated according to the stage of disease and the patient’s physical condition. In principle, surgery ranks first, chemotherapy second, and various other treatments in that order. For patients and families, the treatment plan should be made around time (because this disease cannot afford to be delayed), and the biggest fear is regret (one day in the future, remembering that there is a good method that did not work and a good technique that was not used), as long as we try our best and leave no regrets. Other things are told to us by professional doctors and the patient’s body, such as surgery can not be done, chemotherapy reaction is too big for the body to bear, etc.