Abstract: Resource description framework (RDF) is a normative language to describe the Web resource information. How to store RDF data is becoming an important research issue. By analyzing the characteristics of RDF data， a storage model of RDF was proposed based on relational databases. The storage rules and a storage example were given. On the basis of the proposed storage approach， a prototype storage tool was implemented， and the experiments shown that the approach and the tool are feasible. Also， the theory comparative analyses with the existing storage modules were done.

Key words: semantic Web, resource description framework(RDF), relational database, storage, information preserving