Based on uncertainty system with universal Grey mathematics,an uncertainty system model USM-1to fatigue limits prediction was put forward,the method of precision inspection was introduced.

• 分析疲劳强度估计的现状后,运用泛灰色不确定性系统理论,建立了疲劳强度估算的不确定性系统模型USM-1,给出了精度检验方法。