Picture, the core element of visual art. It plays an important role in every field of visual communication design. As known to all, effective picture is not only image, but also message. This communication of image is even more effective than by words. Someone said that a picture is worth a thousand words. Yes, this is a good measure for evaluating a good picture within a communication. Usually, it called graphic language in area of design. Graphic language like word, it comes from creative ideas. It can be presented by all kinds of visual style.  Even it is not a picture as we expected, but a broad stroke of colour, a word or something else that forms　an image in the given work. Graphic language is one of the most important languages of communication in posters, books, packages, identity programmes and time-based multimedia. No matter how developed the media technology in the future, it would be a everlasting subject for research.Effective graphic language can reinforce the message or move the communication along. This is the reason of its existence and development.

The diversity of aesthetics between Chinese and Western

Many different characteristics existed in　Chinese and Western poster graphic language. Obviously, the reason of difference are partly relevant to their respective traditional culture. It is meaningless to look on the phenomenon of art regardless　its background culture. So firstly, we should understand the basic characteristics　of Chinese and Western art in traditional position.