Monitoring method for stress corrosion and fatigue long service life of nuclear turbine in whole service life

The invention provides a method for monitoring stress corrosion and fatigue long service life of a nuclear turbine in the whole life period. The method comprises the following steps: determining one or more target monitoring components from to-be-monitored components; long-life monitoring data required by the target monitoring component is determined, the long-life monitoring data comprises stress corrosion crack propagation life and fatigue crack propagation life, and the fatigue crack propagation life comprises at least one of low-cycle fatigue crack propagation life and high-cycle fatigue crack propagation life; and performing crack propagation life safety monitoring on the target monitoring component based on the long-life monitoring data required by the target monitoring component. Therefore, stress corrosion and fatigue can be comprehensively considered to carry out crack propagation life safety monitoring on the target monitoring component, so that the whole-life long-life safety operation of the nucle