Title Graphics Drawing Software Design and Implementation Based on DXF Technology Abstract DXF,developed by Autodesk Company,is a CAD data file format and a vector-based ASCII text fo rmat,and it usually used for data exchange between AutoCAD and other CAD software. This system is aimed to achieve some basic functions of drawing and editing various on this system,the graphics can be drawn and edited on the screen and can be saved as DXF format files in database or memory, so that graphics can be recognized by other DXF format supported CAD software and also can be used as a secondary development. In addition,the sys