In the long-term preservation practice of digital academic resources,the idea of hierarchical preservation has been widely applied.Starting with the diversified development trend of hierarchical preservation of digital academic resource,the article comparatively studies the hierarchical preservation condition of digital academic resources at home and abroad,andputs forward the constructinghierarchical preservation model of digital academic resources in China.%在当前的数字学术资源长期保存实践中,分级保存的思想得到了广泛应用.文章从数字学术资源分级保存的多元化发展趋势入手,对比研究了国内外数字学术资源分级保存的状况,并以此为鉴,提出了我国数字学术资源分级保存的模型.
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