Abstract: Based on the needs of railway informatization master plan and business application system development and testing, this paper introduced cloud computing technology, proposed a cloud platform-based System framework of railway unified development test platform. The platform utilized technologies such as source code development and automated deployment to optimize the software development test process, implemented the functions of centralized application development management, resource automatic allocation, software automatic deployment, continuous testing, software rapid release, etc. So as to help all business areas quickly implement application software research and development, resource integration, reduce costs, improve efficiency and core competitiveness.