Abstract: In view of the large span for high-speed railway track laying construction, involving many disciplines and various processes, high requirement of intellectualization, an intelligent system for high-speed railway track laying construction was designed and implemented. The system used B/S architecture, MVC development mode for overall architecture design, ASP.NET language for dynamic Web pages, data warehouse technology and Apriori algorithm for data processing and mining. The system was designed in detail from four modules:organization construction investigation module, design document audit module, completion acceptance module and improving handover module. Practice has proved that the intelligent track laying construction system of high-speed railway developed in this paper runs stably and has good practicability, which has positive significance for improving the intelligent level of track laying construction of high-speed railway in China.