In order to improve the cutting capability and reliability of the complex three-dimension grooves milling insert, we deeply discussed about the relation between cutting parameters and the cutting capability of different grooves inserts and provided the milling force mathematical model. 从提高三维复杂槽型铣刀片的切削性能和可靠性出发,对切削参数和不同槽型铣刀片切削性能之间的关系进行了深入分析,并给出了铣削力在前刀面上的分布函数模型;