Abstract: The evaluation of high-speed railway train operation scheme is an important stage in the compilation of operation scheme, which is of great guiding significance to the adjustment and optimization of train operation scheme. The evaluation of operation scheme involves large amount of data, many types of indicators and complex correlation. Developing an efficient evaluation system of operation scheme can help to improve the efficiency of data operation and accurately feedback the optimization direction of scheme.Based on this, starting with the efficiency of system data management, the diversity and intuition of index expression, the system data management technology and index expression technology were applied to optimize the scheme evaluation system.Using C#language to develop the system based on.NET platform and evaluate the case, the validity and practicability of the key technologies of the system were verified.