【Objective】In order to better analyze the fatigue life of the high-speed train bogie frame.【Method】dy namic stress measurements are conducted on the fatigue concern measuring points of a certain type of bogie frame,and the data is post-processed. A one-dimensional stress spectrum is compiled using the rain-flow count ing method and the fluctuation center method. By analyzing and calculating the Miner linear cumulative damage model, a nonlinear cumulative damage model considering load interaction and inherent attribute damage, and the Cotern-Dolan nonlinear cumulative damage model, their fatigue life is inferred and compared in three aspects. 【Result】The results show that the difference between the analysis results of the nonlinear model considering in herent damage and the calculation results of the linear model is small, indicating that its nonlinear attribute is not obvious.【Conclusion】The life analysis results of the Cotern-Dolan nonlinear cumulative damage model are overall smaller than other kinds, but the trend is the same, indicating that it is more conservative for fatigue life assessment.