In this study, the rise of 20th century Western Op Art (OP Art) ideas, explore its analysis constitute a principle of illusion, an overview of the different years of the twentieth century design, collision out what amazing visual feast, and summarize the five illusion Features: (A)visual tired (B)perspective (C)flashes dynamic (D)contrast color (E)Figure reversed, collecting works on behalf of the rank and file according to a detailed analysis of its constituent principle be summarized. In 2012 Eslite anniversary graphic design, there are seven different themed ad campaign, namely: (a)Photosynthesis, (b)Condenser, (c)Spring tours, (d)Summer Series, (e)Chiu Sheng-Qiu Ming, (f)Good Year, had a good year, (g)Design illustrations, after screening a total of 14 as the sample analysis. This study ＂content analysis＂ to explore the anniversary the same part of the 2012 ad Eslite Op Art, Op Art to understand the situation on the use of modern advertising. From the beginning of 1965, Op Art breaking the traditional visual expression, provoking original visual response in a rational way, to change human visual perception for the plane. The study found that in 2012 Eslite anniversary advertisement, Op Art illusion five characteristics which: ＂visual fatigue＂, ＂flashing dynamic＂, ＂contrasting colors＂ highest frequency of occurrence of these three categories. The results show: Eslite anniversary mining generic advertising festival theme is packaged into a better taste of culture, derived from close to the heart and life of moving, strong and clear message that the advertising and brand spirit deeply rooted in the minds of customers, and future in the mainstream print ads, you can refer to more new media, the Op Art illusion to play a more incisive, so that not only is the image of the poster layout, more visual impact.