The manufacturing processes of precision injection mold through digital manufacturing and normal manufacturing were introduced,and digital manufacturing system was developed. Bar code management was applied to identify the electrode. Based on SQL Server database,UG and PC -DMIS software were secondary developed,the informations such as electrodes, movement,deviation of measurement results and measurement point were digitized. The electrode of rapid processing,one-click three coordinates testing and EDM discharge program automatically generated were implemented.Results show that the research can improve the EDM machining efficiency of precision injection mold.%介绍了精密注塑模具的传统制造和数字化制造的流程，设计了数字化制造系统。应用条形码对电极进行识别管理，以SQL Server数据库为基础，通过对UG，PC-DMIS等软件的二次开发，将电极测量点、跑位信息、测量结果及偏差等信息数字化，实现了电极的快速加工、一键式三坐标检测及电火花放电程序自动生成。结果表明，该研究可以有效提高精密注塑模具的电火花加工效率。
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