Based on the analysis of the information construction of equipment purchasing in colleges and universities, focusing on the 2015 Management Information System of Equipment Purchasing of Xi’an Jiaotong University, this article analyzes the construction targets of object-oriented management system, system framework and related operation processes. The main target is to build up uniform equipment purchasing management information platform. System framework is divided into physical layer, persistence layer, operation logic layer and presentation layer. The key point is different for different equipment purchasing types. The results show that the new system with characteristics of high efficiency, safety and standardized processes as well as innovative features can meet the increasing business requirements and integrate the existing data from different platforms in campus.