Parameterized Action Representation (PAR) designed to bridge the gap between natural language instructions and the virtual agents who are to carry their action for virtual maintenance process. PAR is therefore constructed based jointly on implemented motion capabilities of virtual human or agent action for instruction interpretation. Maintenance Task Decomposition Model and Actions Database (Action-DB) is presented based on the PAR and Intelligent Virtual Maintenance Training System in Delmia environment in this paper. And a real time execution architecture controlling 3D animated virtual human or agent is proposed based on PAR model. Finally, an example is given to verify the simulation process of models and method proposed. And results show that PAR Action-DB is convenient to simulate the virtual maintenance process.%在虚拟人执行维修动作的过程中,参数化动作描述起到了虚拟人动作和自然语言维修指令之间的桥梁作用,是为了规范虚拟人执行维修任务动作.论文在参数化动作描述和智能虚拟维修训练环境的基础上,构建了维修任务分解模型和动作库；以参数化动作描述为基础,提出了用于3D虚拟人维修动作仿真的虚拟维修实时执行层次结构.最后,通过某型起落架维修任务对参数化动作和仿真架构可行性进行验证,结果表明,基于参数化动作描述描述的动作库可以很方便的进行维修过程仿真.
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