Marx’s practical dialectics offer a great transformation in the history of the development of dialectics,but against the intricate background of the reconstruction of modernity and modern social contradictions,the pressing nature of our times demands that a change in its form.Marx’s theory of"comprehensive production"provides a reliable logical intermediary for transitioning practical dialectics towards social engineering or the complementation and improvement of practical dialectics by social engineering.As a new form by which social agents can adapt to,rely upon,transform and change the social world,producing and reproducing their "social relations,"social engineering has become a basic way in which human beings in modern society can grasp the world;it is thus the transforming or modern narrative form of Marx’s practical dialectics.Reform and opening to the outside world,which are still ongoing and will never come to an end,represent system engineering,and the social engineering form of practical dialectics implements top-level design with strategic thinking,grasps progressive directions with historical thinking,learns about the rules of practice with dialectical thinking,handles transformative capability with innovative thinking,and fulfills minimum goals with bottom-line thinking.In this sense,the"five-in-one"overall plan of socialism with Chinese characteristics,the"Four-Comprehensives"strategic planning of the CPC for national governance and the five ideas of"innovative,coordinated,green,open and shared"development constitute the unity of both theoretical and practical logic in social engineering methodology.The three together form the strict logical system of social engineering which will enable China to face the future"sequel to modernity."