In the sense of substantialism, ideological and political education in colleges and universities is actually an ideological discourse practice movement. The training objectives of colleges and universities directly contain the extremely essential epoch proposition of discourse power of ideological and political education in colleges and universities. The construction of ideological and political education system in colleges and universities and the power to select the implementers of specific educational activities, the power to implement the discourse process of ideological and political education in colleges and universities, and the power to control and create the environment of ideological and political education in colleges and universities should be the key nodes of discourse power of ideological and political education in colleges and universities. In new era, it is certain that the discourse power of ideological and political education in colleges and universities will inevitably face the influence and challenges of many factors in the rapidly changing temporal and spatial structure of the internal and external objective environment, and may even lead to a crisis of confidence in the discourse power in a certain degree and a certain space. Therefore, colleges and universities must promote the overall construction and benign operation of ideological and political education system through system construction, and consolidate the political and organizational foundation of discourse power. We must firmly grasp the boundary of the basic “hard core” and “protective belt” of Marxist theory and strengthen the scientific basis of discourse power of ideological and political education in colleges and universities. Meanwhile, through the guidance of discourse preference, the design of discourse scene and process, and the optimization of assessment methods, the direction of ideological and political education and the needs of the educational objects must be positively matched, and the value foundation of discourse power of ideological and political education in colleges and universities must be consolidated.