测定肝硬化、肝癌患者和正常对照组的红细胞（ＲＢＣ）免疫功能、红细胞调节因子及肿瘤红细胞免疫功能的变化。结果发现肝硬化、肝癌组ＲＢＣＣ３ｂ受体花环率明显下降，ＲＢＣＩＣ高于对照组，血清ＲＢＣ促进率下降，抑制率升高，肿瘤红细胞免疫率明显下降，肝癌下降更明显。初步表明肝硬化、肝癌患者体内存在继发性ＲＢＣ免疫功能低下，肿瘤红细胞免疫功能严重缺陷 The erythrocyte (RBC) immune function, erythrocyte regulatory factor, and tumor red cell immune function were measured in cirrhotic patients, liver cancer patients, and normal controls. Results showed that the rate of RBC-C3b receptor rosette in liver cirrhosis and liver cancer group decreased significantly, RBC-IC was higher than that in control group, serum RBC promotion rate decreased, inhibition rate increased, tumor red blood cell immunity decreased significantly, and liver cancer decreased more significantly. Preliminary findings indicate that secondary RBCs have low immune function in patients with liver cirrhosis and liver cancer, and that the tumor has serious defects in red blood cell immune function.