Digital computer-aided design and computer-aided manufacturing (CAD/CAM) technology has become the core technical support in the field of oral aesthetic restoration due to its advantages of precision, efficiency and personalization. This paper systematically sorts out the development context of CAD/CAM technology in oral aesthetic restoration, focuses on elaborating its clinical application progress in scenarios such as tooth defect restoration, implant superstructure restoration and removable partial denture restoration, conducts efficacy evaluation from dimensions including restoration precision, functional recovery, aesthetic effect and patient satisfaction, and analyzes the challenges in current technology application and future development directions.