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The existing launch vehicle test data management and visualization system rely on third-party plug-ins,it can’t realize rendering and interaction of three-dimensional model in browser and rely on runtime environment.It can be very cost to deploy and maintain the system. A new launch vehicle test data management and visualization system is designed based on JavaScript framework ExtJS and WebGL framework three.js. First,the overall framework is designed based on B/S architecture,then the data read sheme is designed based on Web Worker to solve the problem of 2d graphic data transmission delay. The test results show that the system doesn’t rely on the runtime environment and plug-ins. It can realize rendering and interaction of three-dimensional model in browser smoothly,be compatible with our country homebred operating system and reduce the costs of deployment and maintenance.