本文就86CrM_0V_7冷轧工作辊解剖后,分别从轧辊的淬硬层、过渡层及芯部取样进行断裂韧性测试。并对各层组织结构进行了微观分析。在该辊芯部取样,选取不同温度淬火及低温回火处理后,进行断裂韧性测试。似通过组织结构与断裂韧性关系的分析,探讨轧辊剥落原因. In this paper, 86CrM_0V_7 cold rolling work roll anatomy, respectively, from the roll hardened layer, transition layer and the core sample for fracture toughness testing. The microstructure of each layer was analyzed microscopically. In the roller core sampling, select the different temperature quenching and tempering treatment, the fracture toughness test. Through the analysis of the relationship between the structure and the fracture toughness, the reasons for the roll spalling can be discussed.