The Special project of "Expo Online Key Technology Research and Application" by Chinese Ministry of Science and Technology passed the acceptance in Shanghai on 12th August. It is known that the subject took more than 2 years of research, made a number of technical achievements, of which over 70 percent has been applied. As one of the two highlights of this Expo, the unique 3D effects and interaction, made more people see his favorite exhibition halls anywhere just staying at home. After the 104 days of operation, the on-line park visitors have reached more than 56 million. It is learned that the subject has completed 9 software copyright registrations, declared 6 national patents and 19 academic essays published in core journals or academic conferences at home and abroad; completed a number of characteristics, wide supportive range of Internet-related prototypes and Expo test &demonstration systems, of which more than 70% of the results have been applied to the Shanghai World Expo Online Project.