Abstract:Soil acidification is evident in Southern Anhui. It took Guangde County of Xuancheng City as a typical region in this paper to analyze the change tendency of soil pH value by comparison of pH data in 1981-1985 and 2006-2007 from different aspects (i.e., general region, major soil types, major agricultural land types and spatial distribution) systematically. And in the end, the effective measures to reduce soil acidification according to regional actual situation were put forwards.