The Chinese Communist Party (CCP)’s ideology has undergone remarkable changes in the past three decades which have facilitated China’s reform and opening up as well as its modernization. The thesis has expounded upon the argumentation by enumerating five dimensions of CCP’s ideological changes and development since 1978. First, the Party had restructured its ideological orthodoxy, advocating of ‘seeking truth from facts.’ Some of central Marxist tenets, such as ‘class struggle’, have been revised, and in effect demoted, and the ‘productive forces’ have been emphasized as the motive forces of history, so that the Party shifted its prime attention to economic development and socialist construction. The Party theorists proposed treating Marxism as a ‘developing science’ and a branch of the social sciences, but not an all-encompassing ‘science of sciences.’ These efforts have been so transformative that they have brought revolutionary changes in Chinese thinking of, and approach to Marxism. The Party has also changed the role that ideology plays in the Chinese policy process while remolding its doctrine.