Abstract: In the Communist Manifesto,politics is an attributive word to describe the historical factors,including ruling,constitution,movement and struggle. The politics in the Manifesto is also a dynamic word,which is defined by different economic bases. Therefore the Manifesto not only criticizes the politics,law and morality as absolute truth,but also realizes the disenchantment on the enlightenment concept of politics,which actually concealed the class attribute of politics. The deconstruction of idealist concepts of politics in the Manifesto provided the possible path for the reconstruction of public politics in a post-class society,namely the communist society. When the capitalist political/class ruling has developed with advanced technologies and abundant historical experience,the critique upon idealist political theories promoted by the Manifesto has to face unprecedented challenges. However,due to the surplus crisis caused by globalization and robotic production,as well as the open discourse in the cyber space,the class consciousness may develop in the new historical context,which will push the political practice expected by the Manifesto into a new era.