With the deepening of socialization and internationalization, all types of emergencies have often occurred in universities, and trend to increased gradually.In order to raise the university emergency recovery capability,according to current situation and characteristics of university emergency, two kinds of artificial intelligence techniques ,case based reasoning(CBR) and rule based reasoning(RBR),are combined to construct a decision support expert system of university emergency. The basic framework and workflow of system are provided and the specific design of CBR and RBR are discussed. A new approach for solving scientific decision making in university emergency is provided.