Digital resources, as an effective means of digital storage, can be preserved for a long time. On the one hand, it provides high-quality data sources for the implementation of salvage protection of intangible cultural heritage. On the other hand, it can compensate for the problems of resource heterogeneity, single storage method, and currently undefined protection level and priority in the rescue protection of intangible cultural heritage. Due to the complexity of intangible cultural heritage and the liveliness of its cultural space, ensuring the long-term preservation, visibility, and readability of digital images is a problem that image recorders need to consider. In the process of transforming dynamic cultural heritage into digital images, it is necessary to restore and reproduce the original ecological behavior of intangible cultural heritage. This article explores how digital imaging can be applied to the protection of intangible cultural heritage. Through the virtual reality technology integration of computer graphics, multimedia, digital animation, network communication and modern technology cloud storage service system, real scenes and virtual objects are superimposed in real time, and innovation is the inheritance and development of intangible cultural heritage solutions.