The National Digital Library Project (NDLP), which was launched in 2005, has attracted wide attention across Chinese society. This paper introduces the project, and covers its basic characteristics, objectives, and content. It also explains the basic concepts and the overall structure of the project and gives an introduction to the design of its basic platform, application platform, business management system and its standardization control system. As of the end of 2009, the National Library of China maintained over 320 TB of digital resource. Finally, the article also presents the digital resources involved, including collection policies, such as the collection of web information and new media.