分析生产中使用的各种数控气割机编程系统软件的特点 ,对零件图形输入、排样、数控代码生成等功能的实现方法进行综述。新开发的数控气割机编程系统可以使用户方便的输入零件图形 ,自动给出下料利用率高的排样方案并生成气割机使用的数控代码。并以该系统为例阐述数控气割机编程系统的结构设计 ,并给出例题的编程结果 This paper analyzes the features of programming system software of various CNC gas cutting machines used in production, and summarizes the realization methods of the functions such as part graphic input, nesting and NC code generation. The newly developed CNC gas cutting machine programming system allows users to easily enter the part graphics, automatically give a blanking high utilization of the nesting program and generate gas cutting machine used in the NC code. Taking the system as an example, the structure design of CNC gas cutting machine programming system is expounded and the programming result of the example is given