In the information age, digital heritage is still fresh for many people. Even so, digital heritage concerns economic, social, cultural and other fields, especially in the field of cultural heritage, so systematically studies and discussions of digital heritage have already come into notice at home and abroad. It is helpful to comprehensively understand contents and categories by discussing the concept and the connotation. Furthermore, by the way of the analysis of the current situation and bottleneck problems, it will be a kind of diagnosis to digital heritage and necessary steps to further make the digital heritage protection work do well and then inherit human cultural heritage.