The "international Conference for Metric Geometry and Differential Geometry" was held at the Building of International Culture on May 14. More than 20 renowned experts and scholars from China, United States, France, Germany and Finland, etc. attended the conference, including J. Cheeger, B. Lawson, R. Bryant (Academicians of AAS), Tian Gang (Academician of American Academy of Arts & Sciences and the Chinese Academy of Sciences), J.-M. Bismut (Academician of French Academy of Sciences), J-P Bourguignon (President of IH ), James Simons (President of Renaissance Technologies of U.S.).