Abstract: High-speed Railway Asset Management System could be used to implement the lifecycle asset management for high-speed railway. The dynamic data which could reflect the status of infrastructure inspection and repairing were access from other systems in Railway Administration under the existing mode of entrusted operation management of high-speed railway. The article proposed the access solution for different data and network, solved the data association between the System and external dynamic data, researched on the data storage and retrieval, introduced the specific access scheme of Railway Maintenance of Way Production Management System for Beijing-Shanghai High-speed Railway.