老龄化是当今面临的一大社会问题。通常老龄化的界定主要采用老年人口占比这一指标来量化。以发展的视角与人口年龄结构划分标准而言，单一指标的老龄化论断削弱了学术的严谨性和对现实的指导性。为精确各个族群老龄化的差异，以发展的视角分析出台减缓老龄化进程的相关策略，使区域经济发展与老龄化进程趋向协调。本文基于第四、五、六次人口普查数据资料，对百万以上18个少数民族的老龄化程度进行新的分层测算。在分析其老龄化现状的基础上，给出1990年、2000年、2010年三个时段的年龄结构类型，分层测算了18个民族20年间年龄结构类型或老龄化进程的速度和差异，为国家制定分层策略提供数据化支撑。%Population aging is a major social problem. Aging degree is conventionally indentified through the proportion of el-derly people in the whole population, but with regard to population development and age structure classifications, traditional aging degree indentifying method based on the single percentage index lacks strictness for academic research and guidance value for theory application. This essay try to find out specific differences between the aging courses of various ethnic groups , provide references for government strategies to slow down population aging rates and ensure a harmony regional economic de-velopment despite existing aging problems in ethnic groups. This essay gives new detailed research on 18 ethnic groups ’ aging degree in a layered calculation method. Every minority involved in the research has a population of over than one million peo-ple. The research covers statistics from the fourth, fifth, sixth national census. The essay presents age structures of national populations recorded in 1990, 2000 and 2000 as well as analysis 18 groups’ age structure types,aging degrees and differ-ences. Quantitative results from the research in the essay can provide data support for specific national strategy making.
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