本文分析了大型水利施工中设备配置和费用分析专家系统的设计与实现。系统开发采用了范例推理方法 ,其范例面向规划模型 ,由主特征、设备子范例和费用子范例构成 ,范例库中的基本范例代表了典型情况下的设备配置和费用约束。这里着重讨论了系统结构、范例推理机制以及规划方案实现 This paper analyzes the design and implementation of the expert system for equipment configuration and cost analysis in large-scale water conservancy construction. The system development uses the paradigm reasoning method. Its paradigm is oriented to the planning model and consists of main features, device sub-paradigms and cost sub-paradigms. The basic paradigm in the example base represents the device configuration and cost constraints under typical conditions. Here focuses on the system structure, model reasoning mechanism and the realization of the planning program