Using hypertext style and object—oriented technology，the authors proposed the model WNCH(works，node，content，hotspot)for the management and organizing of multimedia works．This project is based on the unified view of readers and authors and the properties of multimedia works．In this paper，the properties of multimedia is analyzed，some examples of multimedia information models are introduced，the structure，design and expressing ability of WNCH model is described．At last，the application of WNCH model to multimedia works management including authoring，reading and guiding is discussed．