Abstract: In order to implement the high efficient office automation(OA) of enterprise, the Authors analyse the status quo of OA system, and deeply study the automation technology(Java 2 Ptatform, Enterprise Edition)， classify, mode and implementation mechanism of workflow. This OA system is based on J2EE architecture. The authors analyze and design this OA system through making full use of the predominance of J2EE architecture and putting in account the requirements and problems that have been met with in the process of enterprise information alization. The function models of this system include such modules as daily work, daily business, general information and system