To address the problems of disconnection between culture and technology, the lag in AIGC-enabled teaching, and the lack of a project-based closed loop in 3D graphic design courses, this study takes the cultural anchor principle, the technological adaptation principle, and the project-based closed-loop principle as its construction principles. It proposes an AIGC project-based teaching model and a phased tool adaptation system from the perspective of cultural inheritance, and conducts empirical verification using que ti, a traditional Chinese architectural component, as a case study. This research provides a feasible reference implementation path for the cultural empowerment of design courses and their integration with AIGC technology.