Abstract: Objective: To analyze the correlation between anemia and the related factors,such as stage of the cancer,concentration of albumin,chemotherapy,gender,and age in patients with lung cancer.Methods: The clinical data of 251 patients who had been treated in our hospital between Jan.to Dec.in 2001 were collected using the access data base.TNM staging for lung cancer of UICC(1997) was adopted and the related factors for anemia of lung cancer were analyzed with statistical package SPSS 10.0.Results: The incidence of anemia was 29.88% in all;the difference of anemia incidence between male and female was not significant(P>0.05);The incidence of anemia in patients with hypoproteinemia and those who had received chemotherapy was higher than that in patients with normoproteinemia and those who had not received chemotherapy(P<0.005);the incidence of anemia was different in patients with different stages of lung cancer(P<0.05).Three risk factors finally entered into the model of Logistic regression:level of serum albumin,chemotherapy and stage.Conclusions: Stage,chemotherapy and concentration of albumin are the related factors for anemia in patients with lung cancer.