本文以酶联免疫吸附试验法对痰菌阳性肺结核、痰菌阴性肺结核、矽肺合并活动性肺结核患者和健康对照组(四组共191例)行血中抗结核菌抗原的IgG 抗体测定,四组的阳性率分别为94.4%、90.8%、89.5%和6%.结果表明该抗体的测定时肺结核的诊断具有一定的临床价值.对矽肺和合并结核两者具有鉴别诊断价值. In this paper, IgG antibodies to Mycobacterium tuberculosis, sputum negative pulmonary tuberculosis, silicosis with active pulmonary tuberculosis and healthy control group (191 cases in four groups) were detected by enzyme-linked immunosorbent assay The positive rates of this antibody were 94.4%, 90.8%, 89.5% and 6%, respectively.The results showed that the diagnostic value of this antibody was of clinical significance in the diagnosis of tuberculosis and had differential diagnostic value for both silicosis and tuberculosis.