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Classical approaches to implement Grid resource information service (GRIS) are either centralized or hierarchical. It will result in problems of scalability and single point of failure as the scale of Grid systems rapidly increases. To address scalability and reliability of Grid Resource Information Service, we proposed a distributed resource information service model that extends the information service architecture of GT4 based on superpeer model which is one of the P2P techniques. In the results of our simulation experiments, it observed that this model has high scalability and robustness. Future we will implement it in our MICE-G Grid system.