本文介绍了目前在国外文献中研究地下水PH和PE值时所常用的质子和电子转移自由能级标度图。该二图可一目了然地说明地下水各化学组分间质子和电子转移的机理、转移的方向和次序、转移过程中的能量变化关系以及地下水PH和PE值的实质等问题。这对正确地认识和了解地下水PH和PE值的产生和变化,具有重要的理论和实践意义。 This paper presents the commonly used free energy levels of proton and electron transfer in the study of the pH and PE of groundwater in foreign literature. The two maps provide a clear picture of the proton and electron transfer mechanisms, the direction and sequence of migration, the energy changes in the transfer process, and the nature of groundwater PH and PE values ​​at a glance. This has important theoretical and practical significance for correctly understanding and understanding the occurrence and changes of PH and PE in groundwater.