Abstract:In allusion to the migration plan of the meteorological observation data, the presentation of meteorological code forms and the migration implementation scheme of WMO is introduced briefly. The migration implementation scheme of CMA is also suggested.The analyses of the impacts of the migration on the current meteorological operational systems of CMA (including the observation system, the telecommunication system and the data application system) are emphasized. The reply steps and the schemes to avoid or decrease the impacts are given.