Abstract: In response to the current single machine limitations, cumbersome processes, poor connections, and more time-consuming in the preparation of train operation diagrams for urban rail transit, this paper developed an intelligent train operation diagram preparation system based on the B/S architecture. The paper solved the problems of large-scale data processing, real-time feedback and visual display of front-end and back-end data in the process of train diagram compilation by introducing the B/S architecture and ZRender framework. It implemented the functions of one click generation, automatic layout, dynamic visualization, and user collaboration of train diagram compilation, improved the efficiency and quality of train diagram compilation. The system has been practically applied on multiple subway lines in Shenzhen. The application results show that the system can make the compilation of running charts more convenient and accurate, significantly improve the efficiency of compilation.