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The traditional rich clientflight simulation system is limited by the application program and hardware equipment, which leads to its openness, ease of use and cross-platform, and it is difficult to meet the needs of designers after leaving the laboratory. According to the above problem, this paper makes a thorough study of Web three-dimensional visualization. Using WebGL to support browser-side 2D/3D hardware accelerated rendering without installing any rendering plug-ins, a data-driven three-dimensional flight visualization simulation system is built on the basis of WebGL third-party graphics library Three.js. Users can seamlessly access the service resources of the platform on the Web side. Driven by aerodynamic data, the system simulates the trajectory of the aircraft in real time, taking into account the sky effect, tail flame effect and camera roaming, which increases the authenticity of the simulation effect, and enables users to get intuitive and rich three-dimensional simulation results through the browser, which has good application value.