Abstract: 3D virtual reality technology is the integrated utilization of computer graphics systems, various of display and controlling interface device. It can generate an interactive 3D environment in computer, Providing users with an immersive feeling environment. Currently, however, due to limits of hardware configuration and network communication speed, the 3D virtual reality technology has not been universally applied in digital libraries. On the other hand, because of advantages of high-speed data transmission, reasonable price and multi-application services, 4G networks, create favorable conditions to the application of 3D virtual reality technology in libraries. Moreover, the arrival of the 4G networks era provides new directions for multiple service of libraries to carry out 3D virtual book reading, multi-service teaching video playback, and virtual training and conferences, etc.

Key words: 4G networks