本文指出，设备维修已经历了故障维修、预防性维修两个阶段，目前已进入预测性维修新阶段．预测性维修系统应用振动分析、声学分析、光谱红外分析、锈蚀分析及磨损分析等状态监控仪表检测设备故障信号，通过接口装置及计算机软件进行设备监控，在设备状态异常时输出报警及作业指令。本文介绍了实现预测性维修的生命周期及显著效益，指出它是一种完美的、“及时性”维修方法。 This paper points out that the equipment maintenance has gone through two stages of fault repair and preventive maintenance, and now it has entered a new stage of predictive maintenance. The predictive maintenance system detects the equipment fault signals by vibration monitoring, acoustic analysis, infrared spectrum analysis, corrosion analysis and wear analysis. It monitors the equipment through the interface device and the computer software, and outputs the alarm and work instructions when the equipment is abnormal. This article describes the life cycle and significant benefits of predictive maintenance, pointing out that it is a perfect, “timely” method of repair.