A conference on the theme, "New Missions of Academic Libraries in the 21st Century," was held on the occasion of the 100th anniversary of the founding of Peking University and the dedication of its new library building. The published conference proceedings included 144 papers. Plenary papers on the six sub-themes of the conference were presented and discussion sessions followed each plenary session. This paper summarizes the keynote address, and the plenary papers and the discussions which followed for each of the following themes: (1) "Mission and Purpose of Academic Libraries in the 21st Century"; (2) "Management and Organizational Structure of Digital Libraries"; (3) "Services and Resource Sharing in a Networked Environment"; (4) "Management of Electronic Information"; (5)"Libraries and Distance Learning"; and (6) "Professional Development and Continuing Education." (AEF)