The ancient animal-shaped knocker in Huizhou possesses three characteristics: the animal-alike design, symmetrically aesthetic principles and winding-featured drawing lines. Modern graphic designers can simplify it by the methods of using simple-styled white-and-black drawing shadow by exaggerating and transshaping partial features or eliminating the details to cut out the superfluous parts in the process of their designs. Meanwhile, the realism-to-abstraction method, major constitution of point, line and plane and the modern graphic design of simple and exaggerated images can all contribute to excellent graphic designs, thus achieving the perfect combination of tradition and modernity.