In this paper, we first introduce the high efficient pattern matching algorithm named Rete. Second, we analyze the problem appeared in using Rete algorithm to develop expert system. But it develops a new way to realize Agents' real-time and cooperative reference. Then we put forward to embed the Rete algorithm into Agents and realize cooperative inference by Agents' communication. On these bases, we discuss the accuracy and real-time feature of cooperative inference in detail. Finally, we describe two Agent-communication performatives and a developing instance of multi- agent system to monitor oil tanks.
