One of the most terrifying details in Water Margins was the death of Chao Gai. According to the novel, Chao Gai was saved by Song Jiang and the others after being poisoned, but his condition became more and more serious. In the end, Chao Gai was poisoned to death by Wu Yong and Gongsun Sheng at Huangnigang. Jin Shengtan's evaluation of Chao Gai's death was that he deserved it. He pointed out that although Chao Gai had joined the uprising to save Song Jiang, he had gradually become more and more selfish and greedy. He used the power of Liangshan Lake for personal gain and even had a conflict with the leader of Liangshan Lake, Song Jiang. In the end, his death from poisoning was a great loss to Liang Shanpo. In addition, Jin Shengtan also believed that Chao Gai's death was a conspiracy by Song Jiang and the others. He pointed out that Song Jiang and the others didn't really want to kill Chao Gai, but they used Chao Gai's death to create obstacles to prevent others from joining Liang Shan Po. In the end, Liang Shanpo's lineup was completely changed, which also laid the foundation for the later story. The death of Chao Gai was a thought-provoking detail in Water Margins. His actions and decisions, as well as his death, reflected the complexity and contradiction of human nature.