On the basis of the daily precipitation of the Meiyu period at 44 stations in the Changjiang-Huaihe region from 1954 to 2003,the temporal evolution and spatial distribution characters of torrentialrain(≥50 mm/d) are investigated in terms of fuzzy cluster method and empirical orthogonal function(EOF) decomposition.Results show that the Changjiang-Huaihe region is divided into south and north area according to the prominent reginal difference of torrential-rain rainfall;there are prominent inter-pentadly,inter-monthly,inter-annual,inter-decadal variabilities in the torrential-rain rainfall of the Meiyu period;the peak value of torrential-rain rainfall appears in the fifth pentad of June in south area and in the first pentad of July and the fifth pentad of June in north area;the contribution rate of torrential-rain to the total rainfall of the Meiyu period in south area is higher than that in north area,while the concentration rate(the ratio of Meiyu torrential-rain rainfall to annual torrential-rain rainfall) in north area is higher than that in south area;the torrential-rain rainfall shows a remarkable long-term ascending trend in south area,but no evident trend in north area;there are different time scale oscillations in the torrential-rain in both south and north area.