Abstract: With the increase of interact information, intelligent knowledge retrieval becomes the target and tendency of retrieval technique in the future. Agent technique and conceptual retrieval technique have been extensively used in knowledge retrieval. On the basis of this two technique, fully using of the initiative.study.intelligent quality of Agent and the semantic connection.dynamic.inheritance quality of conceptual relation networks,this article puts forward the model of knowledge retrieval based on multi-Agent and multi-layer conceptual relation networks. It is an intelligent and individual knowledge retrieval model which has a wide-ranging application perspective.

Key words: knowledge retrieval ;study Agent; information service Agent; conceptual relation networks