The characteristics of information dissemination in the microcultural ecology provide opportunities for the discourse of ideological and political education to be everywhere as “air” and as “salt” melting into food. At the same time, it also challenges the quality monitoring of ideological and political education discourse. The ideological and political educators in colleges and universities should consider the situation of discourse ecology, set up the discourse platform actively, change the ways of discourse expression to adapt to the microcultural ecology, strengthen the sense of direction, strengthen the consciousness of leading and insist on the awareness of the bottom line in order to surmount the microcultural ecology and consolidate the discourse power of ideological and political education in colleges and universities.