Abstract: In order to meet the growing demand for railway data management and data value mining, and to adapt to the rapid development of emerging digital technologies, this paper conducted research on a data service platform oriented to enhance capabilities of digital railway infrastructure based on the existing railway data service platform, proposed the overall architecture, technical architecture, and data architecture of upgraded and optimized data service platform, implemented functions such as data collection and storage, data management, data analysis, data operation, and shared services. It adopted key technologies such as data collection and sharing distributed microservices, integrated storage of data lake and data warehouse, and data security protection to support business decision-making, optimize operational processes, and enhance customer experience, provide technical support for accelerating railway digital transformation.