本文介绍了一个基于实例推理的机构运动方案设计支持系统，该系统除能利用以实例描述的知识外，还能利用以规则、过程和框架表达的设计知识，同时，该系统还广泛应用了模糊设计理论和虚拟现实技术，从而，较好地处理了设计过程中的模糊信息，并且在设计阶段就能知道所得机构的工作状态。 In this paper, we introduce a case-based reasoning-based mechanism for institutional design of motion planning that can take advantage of design knowledge expressed in terms of rules, processes and frameworks, in addition to being able to take advantage of example-based knowledge. At the same time, the system employs fuzzy Design theory and virtual reality technology to better deal with the fuzzy information in the design process and to know the working status of the resulting organization during the design phase.