Abstract: With the development and application of big data technologies, data become the national strategic source, are also the commanding point to improve the competition and control the market. This article mainly analyzed the current situation of the Information System for Taiyuan Railway Administration, carded the requirements on data sharing, business collaboration and data mining, proposed the mainframe and key technologies on big data analysis platform in Taiyuan Railway Administration, cleared the data source of the big data analysis platform, designed the corresponding main functions which consisted of resource allocation, production organization, service management, safety precaution and data analysis, etc. The above-mentioned works played an important role on the construction on big data platform in China railway.