通过对万能轧制Ｈ型钢复合镶套式轧辊应力场的分析和计算，采用可靠性优化设计方法，仿真研究了材质性能、残余应力和摩擦系数对轧辊系统可靠度的影响，并给出了最佳过盈量。其结论可用于指导复合轧辊材质选择、热装方法的制定和轧辊结构设计。 Based on the analysis and calculation of the stress field of universal-insert H-shaped composite insert roll, the influence of material properties, residual stress and friction coefficient on the reliability of the roll system is simulated by reliability optimization design method. Good confluence. The conclusions can be used to guide the choice of composite roll material, hot-filling method and roll structure design.