详细介绍了基于ＰＣ总线的数控雕刻机ＣＮＣ系统．该系统在硬件上采用了ＰＣ总线工业控制机，在软件上采用了模块化结构化设计、中文图形菜单操作、图形编程、模拟仿真和加工轨迹在线显示等先进技术．整个软件系统采用Ｃ语言设计．该系统在文字图案雕刻和模具（如鞋底上的图案）制造等实际中应用，取得了很好的效果． Introduced in detail based on the PC bus CNC engraving machine CNC system. The system uses the PC bus industrial control unit in the hardware. It adopts the modular structured design, Chinese graphical menu operation, graphic programming, simulation and on-line display of machining trajectory. The entire software system using C language design. The system in the text pattern engraving and mold (such as the pattern on the sole) manufacturing and other practical applications, and achieved good results.