Abstract: Railway dispatching work is very comprehensively and complicatedly. In order to deal with various complicated situations effectively while train safety is guaranteed, the train controller needs to obtain the relevant information of train operation. This paper analyzed the business scene affecting the safety, high efficiency and high speed operation of trains in detail with the method and theory of complex event processing, researched on the definition, catching event, event life cycle, event handling process for the complex event of Railway Dispatching System, proposed a method of complex event processing for the System. The application result showed that the monitoring, identification and processing of complex event in railway dispatching business could be implemented by using this method, and it had good validity.