本文从离子生成热的基本概念出发,着重分析了离子相对生成热与绝对生成热的区别和联系,并根据热化学定律推导出求算离子相对生成热(或绝对生成热)的关系式.然后简要介绍单独气态离子水合热的几种近似求算方法,其后扼说明了使用两套生成热数据时应注意的几个问题. Based on the basic concept of ion-generated heat, this paper focuses on the differences and relations between the relative heat of formation and the absolute heat of formation, and deduces the relationship between the relative heat of formation (or absolute heat of formation) according to the law of thermochemistry. This paper briefly introduces several approximate calculation methods for the single hydration heat of hydrous ions and then concludes with a few questions that should be noticed when using two sets of thermal data.