Abstract: Generally, the Ticketing and Reservation System ( TRS ) for level of railway administration was arranged in the same server rooms, accordingly, the System worked under the pattern of single center. It meant that the continuity work of the System couldn’t be guaranteed if the environment of the server rooms were breakdown. This paper researched on the business, structure and relationship of data synchronization about the System. Combined with virtualization, a double active centers architecture of the System was designed. This architecture was with the advantages of high reliability, flexible to expand and rapid processing capacity.