This study explored the effectiveness and sustainable application of educational technology in a university liberal arts dance sports class. A qualitative case study was conducted with nine students enrolled in liberal arts physical education classes at S University in Seoul in 2023. It focused on how educational technology, including apps such as Pose & Tracking and Slopro, can enhance students’ understanding of dance movements, promote active discussion, and facilitate objective assessment. The findings indicate that the use of these technologies not only improved the students’ learning experiences by facilitating visualization and feedback but also supported collaborative learning and creative expression. This study highlights the potential of educational technology to enhance the quality of liberal arts physical education by making learning highly engaging and effective.