该文探讨了在旋转机器状态监测、故障诊断技术有了长足进步、自动控制技术突飞猛进的情况下，进行故障在线消除的必要性与可能性。作者还结合在旋转机器不稳定、不平衡和不对中故障方面所做的工作，探讨实施在线消除的可行方法，促进人们有意识地进行这一领域的技术研究． This article explores the necessity and possibility of eliminating faults on-line in the condition of rotating machine condition monitoring, fault diagnosis technology has made great strides, and automatic control technology advances by leaps and bounds. The author also explored ways to implement online elimination in conjunction with work on instability, imbalances and misalignment problems in rotating machines to promote awareness-raising research in this area.