There are two kinds of anemia in advanced stage of lung cancer, which should be treated differently: first, treatment-related anemia, because the treatment of lung cancer often needs to use radiotherapy, and patients with advanced lung cancer using radiotherapy often cause bone marrow suppression due to the side effect of treatment, and this bone marrow suppression causes the decline of hematopoietic function, which will cause anemia, and this kind of anemia caused by the effect of treatment can be improved by some treatments. Secondly, due to the development of lung cancer patients to the advanced stage, the tumor crazily snatches the nutrients of human body or the infiltration of bone marrow occurs, which causes the hematopoietic dysfunction and causes anemia, and this kind of anemia and prognosis will be worse, which means that it enters into the situation of hypoxia and poorer quality of life, and it will make the patients fatigued, heartbeat accelerated, pale, and chest tightness and shortness of breath if they slightly move, and so on. So advanced lung cancer patients with anemia should be treated differently, no matter what, the root cause is to improve such symptoms by treating the tumor and stimulating blood production at the same time.