文章结合切割下料中数控切割工艺的特点 ,充分运用了图形处理 ,优化计算等技术方法 ,结合工程实际知识 ,对混合优化排料中的矩形排样单元结构进行了研究 ,提出了基于数控切割工艺的混合优化排料算法。文章最后给出并分析了算法运行实例 Based on the characteristics of CNC cutting process in cutting and blanking, this paper makes full use of technical methods such as graphic processing, optimization calculation and so on. Based on the practical engineering knowledge, the structure of rectangular layout unit in hybrid optimization nesting is studied. Process Optimization Mixing Discharge Algorithm. Finally, the article gives and analyzes the algorithm running examples