Presented here is an investigation report of visiting the European Center of Medium range Weather Forecast ( ECMWF ) and the Meteor France. It describes the organizations, operations and researches as well as the historical developments for both institutions. 本文是对欧洲中期数值预报中心(ECMWF)的考察、访问和交流的情况报告,较为详尽地介绍了ECMWF的机构、业务及研究的历史发展情况;