几何量检测专家系统是以机械制造中最常见的参数、最常用的测量方法为研究对象，综合计算机在几何量测试技术、测试误差理论与修正技术、测量数据处理技术等方面的应用于一体，在一定程度上替代专家，解决检测时可能遇到的各种问题并提供所需的服务。论述了几何量检测专家系统的主要功能、组成及测量过程模型。 Geometric quantity detection expert system is the most common mechanical manufacturing parameters, the most commonly used measurement methods for the study, the integrated computer in the geometric measurement techniques, test error theory and correction techniques, measurement data processing techniques and other aspects of the application, To a certain extent, replace experts to solve various problems that may be encountered in testing and provide needed services. The main function, composition and measurement process model of geometric quantity testing expert system are discussed.