To improve the flexibility of enterprise information system(EIS), this paper proposes a model of Multi\|Agent System (MAS) that supports dynamic enterprise model. The model of MAS consists of two tiers: organization structure tier and business process tier. Due to the autonomy, sociability, reactivity and rationality of MAS, MAS can regulate itself in terms of the learning organization, virtual enterprise and business reengineering. So EIS based on MAS has stronger flexibility and longer life. By combining ...