Abstract: Aiming at the problems existing in the digital transformation process of the passenger transport marketing assistant decision-making system of China Railway Zhengzhou Group Co. Ltd., this paper proposed a technical optimization scheme from the aspects of system structure, data replication, report service, terminal access, etc., and put forward optimization measures to improve business functions from the aspects of operation index analysis, passenger flow prediction, ticket selling strategy monitoring and early warning, train benefit evaluation, and data visualization. The optimized system has achieved good application effect.