Abstract: In the new era, strengthening the ideological education of college students is the proper meaning of the construction of socialism with Chinese characteristics. From the perspective of cultural self-confidence, ideological education in ideological and political courses in colleges and universities faces its own inherent limitations, the penetration of Western culture, and the challenges of Internet subculture. By grasping the dialectical and unified relationship between culture and ideological education, we should base ourselves on cultural development and attach importance to practical exploration. In practical work, the core values of socialism should be practiced, and the cultural self-confidence of college students after the year of 2000 should be improved; Excellent traditional culture should be passed on, and online ideological education should be optimized; college students’ ideological and moral construction should be strengthened, and social and cultural self-confidence should be strengthened; at the same time, the "four self-confidences" should be strengthened and the story of China in the new era should be strengthened.