Chemotherapy may still be needed for 8 times of chemotherapy for advanced lung cancer. Chemotherapy is a common treatment for advanced lung cancer patients, the specific time and number of treatments cannot be determined, it needs to be decided according to the condition and effect, some patients may be stabilized after 3~4 times of treatments, while some patients still have no obvious improvement after 6~8 times of treatments, that is to say, there is still a need for chemotherapy after 8 times of chemotherapy for advanced lung cancer. In addition, the effect of single chemotherapy for advanced lung cancer is not very ideal, and generally it needs to be combined with radiotherapy, targeted therapy and immunotherapy, etc., in order to keep the patient’s condition in a stable state for a long period of time, so as to improve the quality of life and prolong the survival cycle.