Abstract: This paper introduced the background of the railway freight car tracking application and its current performance problem. Based on a comprehensive analysis, a totally new method of using the in-memory database was put forward to solved the problem, the POC test was done afterwards. The test result proved that it was practicable to use the in-memory database to improve performance and reduce cost, from the point of new, whether the early stage investment or the later stage of maintenance, the method was feasible.