Discourse is the interaction of language, as well as the generation and extension of text. In terms of the relationship between ideological content and discourse form, innovation in Marxist discourse requires clarification in many issues, such as its causes, the way that its topics are raised, how it is expressed, and so on. In turn, methodological self-awareness can be extracted from the historical experience of dealing with these issues. Different from the previous topics of the exploiting class to defend their privileged interests, the topic of Marxism is summarized from the "needs of the people" and comes from the focused abstraction of problems encountered in practice. The expression of Marxist discourse is not only about explaining new problems with general principles, but also about new ideas and new theories formed by the topics dealing with practical problems. It refers to how to say and what to say, and its method lies in telling principles, new words, and proclaiming Marxism in the new era. Marxist "terminology revolution" is to constantly put forward new concepts and new categories according to the changes of the times, or transform the original concept categories to serve new practice. Terminology marks the maturity of theory, and its transformation into a topic marks its acceptance by the public, which is precisely the value of Marxist terminology revolution.