Abstract: Resource discovery is a researched hotspot in grid system.A new resource discovery method with Peer to Peer technology based on the resource region is proposed，in which the grid system is divided into several regions based on the resources’ type，the same type resources are organized into one region and the region center node manages the whole region，the center nodes form a pure Peer to Peer network.The grid resource is classified into two classes based on region and in region.The efficiency of resource research and communication are improved and the network bandwidth usage is reduced.

Key words: grid, resource discovery, Peer-to-Peer, resource region

摘要： 资源发现是整个网格系统的热点研究问题。结合P2P技术提出了一种基于资源区域的网格资源发现的新方法，按照资源的类型将网格资源划分为多个区域，具有相同类型资源的网格信息节点组织在同一区域中，各区域由一个域中心节点进行管理，各域中心节点形成P2P层。把网格中的资源分为域间－域内两类，从而大大提高了查询效率和通信效率，减少了网络流量。

关键词: 网格, 资源发现, P2P, 资源区域