本文以不稳定变载荷的(Miner)疲劳损伤累积法则为理论基础,把受不稳定变载荷滚动轴承的承载情况转化为等效平均当量动载荷和等效平均转速。应用可靠性设计方法,推导出滚动轴承寿命计算通用公式,并对非90％可靠度滚动轴承寿命修正系数进行初步探讨. In this paper, based on the theoretical basis of the variable fatigue load damage (Miner) fatigue damage law, the bearing condition of the unstable variable load rolling bearing is transformed into the equivalent average equivalent dynamic load and the equivalent average rotational speed. Applying the reliability design method, the general formula for the calculation of the life of the rolling bearing is deduced, and the non-90% reliability rolling bearing life correction coefficient is preliminarily discussed.