Objective To design the teaching case micro films and explore its application effect in undergraduate Geriatric Nursing course. Methods The research team combined the micro-film teaching method with case teaching，built a total of 11 teaching case micro-films，and applied them to offline teaching. After class，176 students were surveyed on course satisfaction，and semi-structured interviews were conducted with students and teachers respectively. Results A total of 167（95%） students believed that micro-film cases were conducive to enhancing learning interest，88% of the students believed that micro-film cases were conducive to understanding and mastering knowledge，79% thought and political elements were naturally appropriate. However，16% perceived the pre-class online preparation tasks as burdensome，while 91% were satisfied with the overall implementation of case teaching. Interviews revealed that students viewed the case-based microfilms not only stimulated their desire to actively explore knowledge but also helped them quickly recall relevant information when facing patients. Teachers noted that after adopting the case-based microfilm teaching method，student participation in class significantly improved. However，they also mentioned that tasks such as scriptwriting，filming，and post-production required a substantial amount of effort，significantly increased their workload. Conclusion Teaching case micro-film can stimulate students’ learning interest，promote knowledge understanding，help improve teachers’ classroom guidance ability，and provide reference for the integration of ideological and political elements in Geriatric Nursing curriculum.