Abstract: In order to improve the data processing ability of the ticketing and reservation system (TRS), break through the technical and economic constraints of the commercial database on the TRS, implement the autonomic control of database software for the railway TRS, this article combined with the current situation of the railway TRS database as well as the status and advantages of open source data products, analyzed the feasibility of using open source database in TRS, through the implementation of typical application of TRS in open source database, implemented a new breakthrough in the application of open source technology in TRS, proved the feasibility of using open source database in TRS, also conformed to the future development trend of TRS.