During the process of equipment acquisition information, some relevant information systems are developed, but these systems are isolated each other, with short interoperability. Therefore, it is time to find a method to systemize the different subsystems and to achieve the interconnection, intercommunication and interoperability of heterogeneous information systems. This paper first analyzes the actualities of the equipment acquisition information management, and then puts forward an idea of the equipment acquisition information system based on service oriented architecture (SOA). After that, the conception and architecture of SOA is introduced. Based on SOA, the framework of equipment acquisition information system is proposed, and expatiates on the advantages of equipment acquisition information system based on SOA. (C) 2011 Published by Elsevier Ltd. Selection and/or peer-review under responsibility of the Organizers of 2011 International Conference on Energy and Environmental Science.