本文对船用汽轮机减速箱运行状态监测方法进行了探讨。主要对可能用于船用汽轮机减速箱运行状态监测方法及相应的状态特征提取技术进行了分析，给出了一个一般的状态监测处理流程。然后讨论了监测方法的一般评价准则、特征量的选择准则及判决决策准则。最后给出了一个应用范例结果。 In this paper, marine turbine gearbox operational monitoring methods are discussed. This paper mainly analyzes the monitoring methods and the corresponding state feature extraction techniques that may be used in marine turbine gear box, and presents a general condition monitoring process. Then discusses the general evaluation criteria, selection criteria and decision criteria of monitoring methods. Finally, an application example is given.