By principal components analysis,this paper selects 20 indexes,by which it evaluates and classifies the difference of economic development level in the regions in Guizhou province.

• 运用主成分分析的数理统计方法,选择20项指标,对贵州省各地(州、市)经济发展水平的地域差异进行了综合评价和聚类划分。