Based on the opinion of fault block theory, Anhui is divided into three partitions, North China block, Qinling-Dabie fault-fold belt and Lower Yangtze block. Using 53 isoseismic proifle of 24 earthquakes of magnitude 4 and above in Anhui and neighboring region, iftting with the method of multiple linear regression, the seismic intensity attenuation relationship of three partitions in Anhui are obtained. The seismic intensity attenuation relationship of the three partitions also compared with that of eastern China. It showed that the seismic intensity attenuation relationship of the three partitions had certain rationality. But being limited to the factor of information, the result needs to be further improved.%根据“断块学说”观点，将安徽分成华北断块区、秦岭—大别山断褶带及下扬子断块区3个区域。利用安徽及近邻区24次4级及以上地震的53条等震线资料，采用多元线性回归方法进行拟合，得到安徽3分区的地震烈度衰减关系，并与中国东部地区进行比较。结果表明，3分区的地震烈度衰减关系具有一定合理性，但因资料有限，需积累资料进一步研究。
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