Ontology can describe information resource in the level of semantic and knowledge. In order to achieve the semantic description of learning resources in some subject field, the concept of domain ontology is intro- duced. The framework of learning resource management system based on domain ontology is proposed. By introdu- cing ontology into the framework, the learning resource management system implements the semantic description of learning resource. The analysis about the semantic query mechanism and the metadata describing of learning resource are also given. Finally the system is implemented.