Abstract: The "Great Ideological and Political Course" is a core proposition for the reform and innovation of ideological and political theory courses in the new era, with its essence lying in integrating the "small classroom" of ideological and political education with the "big social classroom". Based on General Secretary Xi Jinping's important expositions on the "Great Ideological and Political Course", this paper delves into the logical implications of the "Great Ideological and Political Course" in the new era. In terms of connotative characteristics, to address how the "Great Ideological and Political Course" is possible, it has constructed a new educational ecosystem featuring "broad pattern, diverse subjects, extensive resources, and in-depth practice". In terms of internal logic, to answer why the "Great Ideological and Political Course" is necessary, it can meet the needs of advancing Chinese modernization, resolve the disconnect between theory and practice, and enhance the effectiveness of the soul-cultivation project for the new generation. In terms of construction paths, to explore what can be done for the "Great Ideological and Political Course", in the new era, it needs to tackle new challenges through institutional innovation, expand new measures via technological empowerment, and demonstrate new vitality by deepening evaluation reforms. Therefore, the "Great Ideological and Political Course" can manifest the theoretical consciousness and practical vitality of upholding fundamental principles while breaking new ground in ideological and political education in the new era.