Research on the function and formal beauty of product interface design

User Interface has a rapid development along with high-tech intervention, and the status of it is more and more obvious with its sensory beauty, formal beauty and technological beauty which draws the eyeballs of people, at the same time, the information of product has been transferred and exchanged among us during the communication process. Besides that, UI design also should follow the principle of beauty and make every step of the design excellence with its merits. In this article, we will make some simple discussions on the principle of beauty that appears in UI as well as some expression about it in ergonomics.