The IUGG XXI General Assembly and part of academic topics are reported in brief and programe of IAG and late developments of geodesy in the world are emphasized.

• 简要介绍了第21届国际大地测量与地球物理大会概况和部分专题报告，并着重介绍了IAG（国际大地测量协会）组织的学术报告内容以及近年来国际上大地测量学科的新发展。