Abstract: To solve the lacking content based analysis problem on volumes of domain information resource, a domain ontology based information resource management platform trial system was designed and implemented. Costume ontology(CO) was created to represent domain concepts and the relationship between concepts. CO was used to construct the description database of managed information resource to calculate the relationship between these resource and to add value to them. CO based semantic query on the description database was implemented. The costume domain ontology modeling, ontology formal representation and storage schema were discussed. The trial system took J2EE architecture which including storage component, semantic query interface component, semantic analysis component and semantic inference component. Using resource description framework(RDF), the meaning of the managed resource was mapped to the ontology layer(CO). By semantic analysis and semantic inference, the relationship among resource could be fully used to implement the relevant information resource retrieval and semantic fusion.