Abstract: Several global and limited area climatic models (including atmosphere models, ocean models, and coupled ocean-atmosphere models) are improved and developed according to the observational facts of coupled atmosphere ocean system and the theorem of coupled air-sea dynamics, The numerical studies of short-range climatic variation (i.e.monthly, seasonal, interannual) caused by atmosphere-ocean interaction are done by using observational data and Coupled Global Climatic Models (CGCMs).