采用等电聚焦凝胶电泳，分析了５０２份栽培大麦和２３份西藏野生大麦，结果如下：（１）栽培大麦共出现４４条谱带，分１５组４５种带型，西藏野生大麦共７种带型；（２）酯酶同工酶的地理分布表明，具有相同或相近带型的品种分布与大麦生态区划和基因传播关系密切；（３）大多数西藏栽培大麦品种都有与西藏野生大麦相同的谱带，这条带除了在云南栽培大麦中发现外，其他栽培大麦品种中没有发现 Using isoelectric focusing gel electrophoresis, 502 cultivated barley and 23 wild Tibetan barley were analyzed. The results were as follows: (1) There were 44 bands in cultivated barley, belonging to 45 groups of 15 groups and 7 species of wild barley in Tibet (2) The geographical distribution of esterase isozymes showed that the distribution of cultivars with the same or similar bands was closely related to the ecological division and gene transmission of barley. (3) Most cultivars of barley in Tibet had the same distribution with Tibetan wild barley The same band, except for the band found in cultivated barley in Yunnan, was not found in other cultivated barley cultivars