Abstract: The Work Plan for Comprehensively Promoting the Construction of "Great Ideological and Political Course" provides a new idea for ideological and political course to further focus on the fundamental task of moral education, promote reform and innovation, and achieve high-quality development. Conducting the open-door ideological and political course, highlighting the practice-oriented teaching, fully mobilizing the whole society's forces and resources, and actively building a "Great Ideological and Political Course" are important measures to strengthen the educational and teaching reform of ideological and political courses. "Three-stage Closed Loop, Three-domain Penetration and Curriculum Integration" is an important measure to actively implement the construction of "Great Ideological and Political Course" in higher vocational colleges. The ideological and political course in higher vocational colleges follows the construction of "Three-stage Learning Closed Loop" based on system theory, and creates three-dimensional teaching field space through vertical and horizontal penetration, pointing to the construction of high-quality talent cultivation integrating ideological and political course and various courses, and has achieved initial results in concrete reform practice