In order to improve the efficiency of the draw plate in Signs Industry and standardize of operational process, this paper proposed a parameterized drawing way and technology. The method combined ObjectARX2008 and C# in Visual Studio 2008 to proceed customised AutoCAD. Elaborated in detail the structure of the design and parameterization cartography system, the design as well as the process of the parameterization cartography using the design result. In the process of drawing, the computer will automatically generate the Centrifugal scale plate when the drawing person input the required parameters. Real applications show that the proposed method can greatly enhance the working efficiency. This system extends the scope of AutoCAD secondary development.