In view of the traditional IT operational service desk event full-text retrieval accuracy is not high and the low utilization rate of a large number of historical events list, this paper puts forward a disposal reference model based on event text vectorization method. Through the establishment of production operations of key library, the event text is represented into a feature vector, and selects the appropriate algorithm for different event text feature vector similarity calculation, eventually finds the historical events or the knowledge base by calculation with the existing high similarity of events, as a reference disposal for operations staff. Applying this method to the enterprise service desk incident disposal process, can help operations staff quickly and accurately to find the similar events in the history of or related to knowledge, to formin matter disposal of reference, to speed up the treatment efficiency, but also further improves the intelligent and automation level of the operational tools.