The Luneng Control Steam Turbine Shaft System Prediction and Maintenance System can collect and store various data of the steam turbine shaft system power system in real time, automatically, and continuously through the buffer interface of the Steam Turbine Monitoring and Protection Instrument (TSI) system. Therefore, it provides a complete shaft system operation file, timely early prediction of faults for operators, and accurate and reliable data for maintenance personnel. In particular, it also provides unique analysis methods that are currently not available in many systems in China.