以概念格理论为基础,在形式概念分析的基础上,提出以粒度概念分析(GCA)的方法进行文献关键词分析,并针对Ontology领域开放存取文献的关键词,构建不同粒度概念格。通过基于粗细不同粒度概念格的挖掘,对Ontology领域相关文献进行领域高频关键词和相关低频关键词的分析,从而揭示和呈现Ontology领域相关知识的结构和内在关联,以期探索一种基于概念格的文献关键词分析的新途径。 On the basis of concept lattice theory, based on the formal concept analysis, this paper proposes a method of granularity analysis (GCA) for keyword analysis of documents and aiming at the key words of open access documents in Ontology field and constructing concept lattice of different granularity. Through the mining of the concept lattice based on different granularity of the thickness, this paper analyzes the high frequency keywords and related low frequency keywords in the relevant literature of Ontology field, revealing and presenting the structure and internal correlation of related knowledge in Ontology field, in order to explore a new concept based on concept lattice The New Way of Document Keyword Analysis.