《尔雅》是我国最早的一部解释词义的专著,也是第一部大致按照词义系统和事物分类而编纂的具有百科性质的书目,其采取了以义类聚的编排方式,重在对词义的实际使用状态进行诠释,是对语义场理论的不自觉的实践与运用。要深入了解《尔雅》全书的价值,必须研究这些义位形成的系统,即《尔雅》全篇的语义场。文章借鉴现代语义场理论,以《尔雅.释地》为例来分析其语义系统,以探求《尔雅》语义系统的特点。 “Er Ya” is one of earliest monographs explaining the meaning of words in our country. It is also the first encyclopaedia of bibliography, which is roughly compiled according to the system of lexical meaning and the classification of things. The actual use of state interpretation, is the semantic field theory of unconscious practice and use. To understand the value of “Erya” book thoroughly, we must study the system formed by these etymological positions, that is, the whole semantic field of Erya. The article draws lessons from the modern semantic field theory and analyzes the semantic system with the example of “Er Ya.” In order to explore the characteristics of “Er Ya” semantic system.