振动和油液监测诊断方法是机械设备状态监测与故障诊断技术的重要支柱。在判断机器故障、寻找故障根源方面 ,它们是相互补充的。通常 ,一种方法或技术在判断故障中起重要作用 ,另一种起辅助作用。机器设备有各种类型 ,因而出现的故障也多种多样 ,文章详细阐述了两种诊断方法各自的应用领域 Vibration and fluid monitoring and diagnosis methods are important pillars of the mechanical equipment condition monitoring and fault diagnosis technology. They are complementary in judging machine failures and finding the root cause of failures. Often, a method or technique plays a key role in judging failure, and the other serves as a helper. Various types of machinery and equipment, resulting in a variety of failures, the article elaborated the two diagnostic methods of their respective fields of application