本文从经典溶液理论及半经验模型、近代统计力学理论和分子模拟三大方面阐述了近年来国内外电解质溶液热力学的研究进展。指出电解质溶液的研究已逐渐从经典的溶液理论和半经验模型转向用统计力学理论进行研究，从电解质的原始模型转向非原始模型。从分子和离子的微观参数出发建立高水平的热力学理论模型，以预测电解质溶液体系的宏观热力学性质，是发展的必然趋势 In this paper, the progress of thermodynamics of electrolyte solution at home and abroad in recent years is described from three aspects: classical solution theory and semi-empirical model, modern statistical mechanics theory and molecular simulation. It is pointed out that the research of electrolyte solution has gradually shifted from the classical solution theory and semi-empirical model to the theory of statistical mechanics, from the original model of electrolyte to non-original model. It is an inevitable trend to establish a high level thermodynamic theoretical model based on the molecular and ionic micro parameters to predict the macroscopic thermodynamic properties of the electrolyte solution system