"Jin Shengtan's Commentary "Water Margin"" is a commentary version of the classical novel created by Shi Naian in the Ming Dynasty and reviewed by Jin Shengtan in the Qing Dynasty. The book is based on "Water Margin" written during the Yuan and Ming dynasties. Jin Shengtan edited it into a 70-chapter version and added comments, making it a widely circulated version since the Qing Dynasty. The book includes "Reading the Calligraphy of the Fifth Talented Man" by Jin Shengtan and each chapter's comments, covering the plot, character evaluation and narrative techniques, focusing on the analysis of the novel's structural layout, character creation and language art features, which is of great literary research value.