The best design products and services originate from the needs of potential users to understand. The nature of typical online activities of a Chinese user has its own model. It is the result of the impact of network hardware and software level, education level, social and culture practices, computer- human interactive experience, etcetera. Chinese server connections tend to be slower resulting in longer loading time than in Western countries. As a result they often have multiple windows open. Users are accustomed to seeing several actions, often unrelated, at the same time. Conceivably, this situation conditions them to be more acceptable of a search experience compared to what Westerners would find irrelevant and unacceptable. Because of computer hardware and network communication speed constraints, there is a great difference between Chinese internet users and Western users on the tolerance of waiting. This difference is manifested in two aspects. Firstly, they are willing to wait a longer time for the sites which interest them. Secondly, they are less patient for general information from them, because there is too much negative experience if the page cannot open. So the UI design research of progress bar and waiting animation becomes very important. It allows Chinese users access those unfamiliar websites. In the Multiculturalism era, diversity signs are also international. How to establish the design style by Chinese website standards and express obvious Chinese language idioms is the problem which needs to be solved urgently. In the theoretical semiotics, specific sign system is called code, and the whole cultural code system is a general designation of various different cultures. And each culture code system can distinguish different sub-systems according to their precision, which is called cultural “sub-code”, such as language system, form language system, tone language system, and etcetera. In design, any style can be taken as a kind of code or sub-code. The study emphases of this article include analytical arrangements and characteristics in the sub-code of national form language system, discussing how to communicate the message of national semantics correctly and effectively; and study of the principles of Chinese website design, based on national design signs is the focus of this paper.