To address the practical dilemmas faced by medical ethics education in the dental technology major, such as “disconnection between theory and practice, single educational form, and weakened value-leading role,” this study constructs a trinity innovative model of medical ethics education integrating “digital intelligence technology + red narration + professional practice.” Taking the course Oral Health Care as the carrier, it develops digital red narrative educational cases and applies technical means such as AI virtual restoration, virtual simulation training, and digital evaluation to promote the in-depth integration of the red medical spirit and professional medical ethics literacy in dentistry. Empirical research shows that this model can significantly improve students’ medical ethics cognition (increased by 38.6%), professional sense of responsibility (increased by 41.2%), and professional practical ability (increased by 35.8%), providing a new path and practical paradigm for medical ethics education in medical majors of vocational colleges.