This paper studies on how to design a suitable contract management system on the comprehensive exhibition facilities. Then take Wuhan International Exhibition City contract management system as an example, it gives a right management mode. Firstly the author discusses the features of Expo City contract management and the solution measure. Secondly the paper gives the analysis of the needs, the system design of the system and several major function. Finally it demonstrates several modules of the system and prospects the foreground of its promotion.