The damage of sugarcane stubble affects the quality of its biennial root.Based on establishing the mechanics model of sugarcane stalk in the cutting, mechanics analysis on stubble damage was done.

• 摘要甘蔗根茬破损会影响到宿根质量，通过建立甘蔗茎秆切割过程中的力学模型，对根茬的破坏进行了力学分析。