东汉光武中兴之初，“宦官悉用阉人，不复杂调它士”①。此后，宦官的势力逐渐膨胀，到东汉后期形成宦官专权的局面。他们利用手中的权力，排斥打击正直的官僚士大夫，重用宦官的子弟、亲属及投靠他们的官僚士大夫，垄断了仕途。这样，大批的太学生和郡县的儒生与正直的官僚士 The beginning of the Eastern Han Dynasty Kwangwu ZTE, “eunuchs learned to use eunuchs, not complicated tune it” ①. Since then, the eunuch’s forces gradually expanded to the erection of eunuchs in the late Eastern Han Dynasty. They monopolize their career by using the power they have in hand, excluding bureaucrats and doctors fighting integrity, reusing eunuchs’ children, relatives and the bureaucrats who call upon them. In this way, a large number of too students and county scholars and honest bureaucrats