With the rapid development of computer information technology and the continuous improvement of virtual reality technology, Web-based virtual classrooms, online schools and so on. Has been constantly appearing abroad. Virtual Reality (VR), also known as Virtual Environments, Cyberspace, artificial reality and Simulator Technology, etc .. It integrates computer graphics, multimedia, artificial intelligence, multi-sensors, network and collaborative processing technologies. The latest development of technology. It creates a three-dimensional image world that reflects the changes and interactions of physical objects in real time for users by means of simulation. In terms of seeing, listening, touching and smelling. Perception of realistic experience behavior enables the design to explore deeply, and participants can directly participate in the functions and changes of virtual objects in their environment.

To create a virtual laboratory, we must first establish a basic model, using 3 ds max or all Java 3ds. After the model is established, a part of a virtual scene is created. This tool VRML needs to be completed through virtual reality or Virtool. Compared with other technologies, virtual reality has obvious advantages, that is, it has certain interactivity and can realize human-computer interaction. The virtual experiment part in the virtual laboratory embodies this advantage. This paper expounds the principle and characteristics of virtual reality, and briefly introduces the core systems for creating software (3 ds max, VRML, Virtool, etc.). ), and analyzes the design and production process of a complex virtual reality scene, and makes corresponding solutions to possible problems.