Ideological and political courses are taught through the MOOC platform, which is a form of curriculum for spreading socialist ideology. On the basis of clarifying the research background, this article actively explores the teaching reform of ideological and political theory courses in universities, proposes the difficulties in the construction of ideological and political courses, analyzes the research significance, and proposes construction ideas and countermeasures to enhance the effectiveness of ideological and political course teaching. With the emergence of new online media, the authoritative position of teachers in ideological and political education is increasingly weakening, which has impacted the effectiveness of ideological and political education in universities. Through the application of MOOC in Mao Zedong's curriculum teaching, ideological and political courses are no longer rigid and uninteresting, helping students better understand the sinicization of Marxism, promoting ideological and political education from theory to practice, expanding students' understanding of ideological and political education, and integrating from narrow ideological and political understanding to "great ideological and political" education. By using MOOC courses to assist ideological and political practice classes, an innovative teaching model of ideological and political practice courses that can be promoted is formed, providing new ideas for the reform of ideological and political practice courses.