To solve the problems of “disconnection between technology and ethics, separation between theory and practice” in medical ethics education for stomatology technology majors, this study focuses on the technical advantages of generative AI and the emotional penetration of narrative education, and constructs a four-in-one teaching mode: “generative AI empowerment – core of medical ethics narrative – digital tool support – cross-course promotion”. Taking Digital Dental Restoration Technology, a core course for Grade 2024 stomatology technology majors, as the implementation carrier, this study develops AI-driven medical ethics narrative resources and carries out cross-major promotion and verification in the “Summary of Oral Diseases and Medical Marketing Practice.” Practice shows that after the implementation of the core course, students’ medical ethics cognition score increased by 38.7%, the correct rate of ethical decision-making in digital restoration technology reached 92.3%, and the recognition of red medical ethics spirit reached 94.5%; the adaptation satisfaction of promotion courses exceeded 88%. The research shows that the deep integration of generative AI and medical ethics narrative can realize the collaborative cultivation of “technical ability – medical ethics literacy – narrative expression”. The constructed mode and resources have strong cross-course and cross-major promotion value, providing a systematic solution for the digital reform of medical ethics education in higher vocational medical majors.