Studies on the climatic simulation are reviewed. Three stages are identified according to the objectives of the studies,simulation of normal regime of the climate,sensitivity experiments,and simulation of climatic variability. Simulation studies of climatic variability during the last decade were synthesized. Simulation results on the following subjects are discussed;Indian summer monsoon rainfall, drought in Sahel,climatic variability, world atmospheric circulation oscillations, ENSO cyele and drought/flood patterns in China.