Plot plan is a vital part of 3D mobile phone animation automatic generation system, and plays an important guiding role for the presentation of the animation. In this paper, we apply the Semantic Web technologies to build event ontology. Based on the key information extraction, the events which are hard to be expressed can be represented through a series of specific actions. It is possible to express a complete animation content, so that not only makes the animation with certain scenarios, but also creates a richer animation effects.