Objective To investigate the correlation of chemokine interleukin-8(IL-8) and tumor infiltrating lymphocyte.neutrophil in gastric cancer.Study the effect of chemokine IL-8 on local region immunocompetence and the mechanism of IL-8 in gastric cancer. Methods The distribution and quantitation of the subpopulations of tumor infiltrating lymphocyte including T_3、T_4、T_8 and neutrophil were studied with SABC immunhistochemistry and myeloperoxidase (MPO) kits respectively. Results Interleukin-8 and T_4/T_8 has a negative correlations (?=-0.52,P