The contradiction between virtual and reality and the phenomenon of addiction the virtual bring some problems to our life. Undoubtedly, it has a great disadvantage to our sustainable cities that young people who are addicted to the virtual arouse the fault of social development. People doubt the necessity of developing the virtual society because of the social influence that addicting the virtual has made. It has a great significance to come true the harmony development of virtual and reality and advance the construction of sustainable cities that use Tai chi, China, to balance the contradiction between virtual and reality and understand and develop self.

A department of China put forward a technologic method to resolve the situation of young pioneers addicted in the virtual in 2005. If this method applies in a game and young persons play this game beyond three hours, the game will give a caution and urge persons to have a rest by reduce the experiences and income. The system of preventing addiction began to apply officially in the World of War craft in July 4, 2007. But during the process of application, many problems of this system were found.