Red classic musical works are important teaching materials for ideological and political education in university music courses. However, actual teaching often overemphasizes skill training and does not dig deeply enough into the spiritual connotations of the works. Although students may sing the melody accurately and complete the performance, they do not necessarily form a deep understanding of and identification with the values carried by the works. Immersive stage art combines musical expression with character action and situational interaction, creating conditions for students to understand the spirit of works and form value judgments in artistic practice. Based on music teaching in universities in southwest border regions, this article takes red classics as the main material and immersive stage art as the carrier to construct an educational model linking work study, collaborative rehearsal, interactive performance, and reflective extension. It guides students to integrate their understanding of the historical background and spiritual connotations of works into vocal and stage expression, and then deepens their understanding through post-performance interpretation and practical extension, promoting the unity of professional ability cultivation and value identification cultivation.