本文提出“信息空间图书馆的生态位”的新概念。试图引入信息空间图书馆存在知识竞争力的理念,运用生态位理论与统计分析法,通过比较信息空间图书馆与其主要竞争主体——学术搜索引擎、知识服务网及其他类型信息服务商的信息生态位,揭示当前我国信息空间图书馆的生存环境与知识竞争力。 This paper proposes a new concept of “niche of information space library”. Attempting to introduce the concept of knowledge competitiveness in the information space library, using the theory of niche and statistical analysis, through comparing the information ecology between information library and its main competitors - academic search engine, knowledge service network and other types of information service providers It reveals the current living environment and knowledge competitiveness of the information space in our country.