The enterprise supply and demand network (SDN) is a worldwide multi-functions network. Since the business is in a changed environment, SDN has to perform in a coordinated mechanism. Considering the attributions of Agents, Agent can coordinates and controls the various resources (e.g. human resource, finance, product and technology, etc.) and reconfigure the business process as needed in achieving cost-effective and optimal decision. In the paper, a novel architecture of SDN that is able to support complex cooperative work using multi-Agent is suggested. And a coordination model is also proposed, which define the structure and the behaviors between Agents and workflow.