To solve the problem of isolated digital museum information, cultural information which is scattered and isolated will be shared by constructing a virtual space for digital museum. The role of the virtual space is to use some strategy to collect and find heritage information through the Internet, and then to complete its conduct, extraction, organization and processing. Using multi-thread, information filtering and information reclassification in the design process, techniques of information access, analysis and classification will be improved. The technology can solve the limitations of digital museum information, and can also increase the accuracy of information, which makes a clear classification of cultural information and realize fast retrieval of cultural information.