Abstract: To deal with the problem of metro train delay under the emergency situations, and eliminate the offset time from the established timetable as soon as possible, this article used Visual Studio 2012 and SQL Server 12.0 database to build the timetable system, and establish the automatic adjustment model as well. Besides, the article chose the improved particle swarm optimization and got the optimal solution of the model to implement the simulation of the train dynamic adjustment. The simulation results showed that this method could effectively eliminate the offset time by auto-adjusting multiple trains running times and station dwell times, restore the normal operation of the train.