The main tone of library's next round development is to implement new concept of development and to promote the quality. The key of stepping over from quantity to quality is transformation. The author made a review of the achievement in the past 40 years and the change of position our country's library in international library community, and explored the three global forming consensuses about library's service mode: all media, fully literate, and full cycle. In the end the author put forward some suggestions about the right of speech, technology research and basic research for our libraries's development.