A three-dimensional cultural relics display system based on OpenGL has been designed and implemented for the Dazu Thousand-hand Bodhisattva Rock Carvings. Model browsing, interactive measurement, search queries and other functions aimed mainly at accessing mass multi-source data such as dimensions, engineering charts, virtual restoration models and related information required for cultural relics protection repair projects were implemented. This was accomplished by the application of multi-resolution model construction, model simplification, track ball rotation and other key technologies. The system works well and not only meets requirements needed for projects aimed at repairing and protecting of the cultural relic, but also provides a detailed understanding of cultural relics’ situation for researchers and visitors.