针对电火花线切割编程系统绘制、编辑复杂曲线图形、文字功能差以及数据文件兼容功能不强的弱点 ,本文提出一种综合解决方案。利用AutoCAD强大的图形能力 ,基于对其图形实体数据表的分析 ,由AutoLISP程序提取实体数据 ,并自动转换成线切割自动编程系统所需的数据文件。该方法可使电火花线切割系统完成复杂图形、字体及具有尖角造型实体的加工 ,实践证明有较大的实用意义 Aiming at the disadvantage of WEDM programming system drawing, editing complex curve graphics, poor text function and incompatible data files, this paper presents a comprehensive solution. Using AutoCAD powerful graphics capabilities, based on the analysis of its graphical entity data table, AutoLISP program extracts the entity data, and automatically converted into data files required for automatic cutting system. The method can make the WEDM system to complete complex graphics, fonts and machining with sharp-pointed modeling entities, which has proved to be of practical significance