The work "Based on Meta-universe Platform-Train Simulation Cognitive Training System" is a virtual reality simulation cognitive training system developed by our team with the full scene simulation advantage of Meta-universe Platform and through virtual reality simulation technology for railway communication teaching at this stage, so that new employees can be familiar with the carriage picking and connecting process and have a comprehensive understanding of the structure and accessories of the carriage. This system is mainly developed and produced by 3Dmax modeling software and Unity3D engine, which can learn the car pick-up process and recognize the car structure in the virtual reality space of the meta-universe, and has the characteristics of strong immersion, simulation and high interactivity. Virtual reality technology can present the scenes and objects of the real world in the virtual space in a digital way. Through the meta-universe virtual reality technology, the virtual teaching environment of the train is simulated, and the energy consumption of the entire workshop is reduced to a computer device. Through a large number of simulations, emulation and digital twins, the efficiency of the entire teaching, scientific research and production is greatly improved, and through virtual reality technology can break the limitations of time and space, immersive, repeated operation, improve learning efficiency, at the same time, the immersion and interactivity of virtual reality, so that students can play a role in the virtual learning environment, wholeheartedly into the learning environment, which is very conducive to students' skills training. Because of the virtual training system without any danger, students can practice repeatedly, until fully mastered. Virtual learning environment Virtual reality technology can provide students with a vivid and realistic learning environment, and provide unlimited virtual experience in a wide range of subject areas, thus accelerating and consolidating the process of students' learning knowledge. This system consists of two modules, the first is based on VR virtual reality technology to simulate the car pick-up process module, followed by the three-dimensional virtual simulation technology based on the car structure cognitive module. VR car pick-up, you can move, click, car separation animation, car combined with animation, build vehicles, factories, buildings and other models. The car structure cognition module, based on the computer-based three-dimensional car structure cognition display, can realize rotation, enlargement, reduction, grouping and name of each part of the car. Innovation and application: 1. Full scene simulation, virtual simulation. 2. Solve the problem that the parts of the train are heavy and not easy to disassemble in actual operation, and the operators can observe and operate more clearly. 3. Extremely real to achieve the desired effect of observation and operation, can be more detailed and convenient flexible disassembly parts, improve the degree of skilled operation, to ensure the efficiency and quality of the implementation of the work. 4. The operator can complete the security inspection work, check and observe the parts at any time and place. 5. Avoid the defects that the actual purchase of parts is expensive and the location of the parts is inconvenient to observe. 6. Speed up the speed of practice operation, ensure safety and improve the quality of security inspection.