“大民主”思想是毛泽东晚年思想的一个重要方面。在十年“文革”中,“大民主”思想及其做法发展到登峰造极的地步,最终给国家和人民带来了巨大的灾难。本文认为毛泽东“大民主”观包括以下四层含义(一)无产阶级“大民主”是指轰轰烈烈的群众运动。(二)“大民主”的主要形式是“四大”(三)“大民主”不是目的,而是手段(四)“大民主”的内容是反对所谓的“阶级敌人”。并着重分析了毛泽东最终选择这四层要义的深层次原因。 The idea of ​​“grand democracy” is an important aspect of Mao Zedong’s thinking in his later years. In the “Cultural Revolution” of the past decade, the concept of “grand democracy” and its practices have reached a peak. In the end, it has brought tremendous disasters to the country and its people. This paper argues that Mao Zedong’s concept of “grand democracy” includes the following four meanings: (1) The “big democracy” of the proletariat refers to the vigorous mass movement. (2) The main form of “big democracy” is the “big four” (c) “big democracy” is not an end but a means. (4) The content of “grand democracy” is opposition to the so-called “class enemy.” And analyzes the deep-seated reasons why Mao Zedong finally chose these four meanings.