Abstract: In order to break through the technical bottlenecks in deployment flexibility, resource utilization rate and maintenance cost of train operation dispatching command system architecture, through analyzing the optimization requirements of the system, this article designed the construction scheme of train dispatching command system based on cloud computing, discussed the system resource allocation strategy, analyzed the feasibility of train operation dispatching command system based on cloud computing from the model applicability, system scalability, resource utilization, maintenance cost and system energy consumption. The analysis results show that the train operation dispatching command system is suitable for cloud computing.