Abstract: In recent years, the emergence of algorithmic recommendation technology has changed the pattern of ideological dissemination in colleges and universities. The vulgarization of algorithmic recommendation content and the pursuit of profit have led to the dislocation of college students' emotions and the loss of faith and gradually weakened the leading power of mainstream ideology in colleges and universities. At the same time, our country is in an important period of historical intersection, and the hostile western forces are constantly adjusting their strategy of ideological infiltration. The infiltration mode has gradually evolved from the original strong indoctrination of propaganda and education to diffusion, which is manifested as "scientific" infiltration, "speculation" infiltration and concrete infiltration; and the infiltration content has spread from the political field to many other fields such as economy and culture. At the institutional level, ideological governance in colleges and universities still has limitations such as vague content and unclear intersection, which require colleges and universities to attach importance to and implement ideological governance on the strategic level and conduct a comprehensive review from three aspects: theoretical interpretation, value guidance and institutional system. In the process of governance practice, we should adhere to the unity of party spirit and people's spirit, the unity of dominance and inclusiveness, and the unity of inheritance and innovation, so as to succeed in the project of consolidating the foundation and casting the soul of ideological governance in colleges and universities and realize the modernization of ideological governance in colleges and universities.