On the analysis of semantic conflict in the process of enterprise interoperability, the semantic similarity calculation function about domain ontology will be defined, the elemental level ontology matching algorithm based on semantic similarity will be proposed. 通过对企业互操作过程中语义冲突的分析,研究基于语义的本体的匹配识别技术,定义了领域本体的语义相似度计算函数,提出了基于语义相似度的元素级本体匹配算法。