Chemotherapy for non-small cell lung cancer cannot cure the disease completely, but it can slow down the progress of the disease. Non-small cell lung cancer is a kind of lung malignant tumor disease, once diagnosed, the first choice of treatment is surgery. For patients diagnosed at an early stage, the prognosis is relatively good after radical surgery, and some of the patients can be clinically cured. If the condition of non-small cell lung cancer develops to a certain degree and radical surgery cannot be adopted, chemotherapy can also be adopted, but it is often not a complete cure, and the condition may recur after chemotherapy, and the specific situation varies from person to person. Once non-small cell lung cancer is diagnosed, one should actively cooperate with doctors to take targeted treatment and have regular checkups, so that once recurrence is found, it can be controlled in time.