The rapid increase of multimedia resources makes it difficult for organizing, describing and locating. The method based on ontology is one of the resolving directions, which can simplify resource organization and improve the resource searching efficiency. Based on ontology, we developed a Multimedia Science Paper Generation System (MSPGS). It implements an ontology-based multimedia resource sharing framework. In this paper, three key processes of multimedia resource sharing framework are introduced in detail. First, the ontology based multimedia resource organization structure is proposed; then, we introduce an approach for multimedia description; finally, in order to locate the target multimedia resource accurately and efficiently, the Concept Classified Semantic Search algorithm is described. To evaluate the efficiency and precision of the sharing framework, some widely used evaluation methods such as Precision, Recall and F-Measure are used in the experiments. The experimental results show that MSPGS can work well and the proposed multimedia resource sharing framework is effective.