VR is the abbreviation of Virtual Reality, that is, virtual and reality. VR technology is a kind of computer simulation system which can create and experience virtual world. It generates a simulation environment by computer. It is an interactive three-dimensional dynamic visual scene and entity behavior system simulation with multi-source information fusion. It makes users immerse in the environment. VR Technology (VR) mainly includes simulation environment, perception, natural skills and sensing equipment. Simulation environment is generated by computer, real-time and dynamic three-dimensional realistic images. Perception means that the ideal VR should have the perception of all people. In addition to the visual perception generated by computer graphics technology, there are also auditory, tactile, force, motion perception, and even includes smell and taste, also known as multi-perception. Natural skills refer to the human head rotation, eyes, gestures, or other human action, by the computer to process the movement of participants to adapt to the data, and the user input to respond in real time, and feedback to the user's five senses. Sensing devices are three-dimensional interactive devices.