The paper is a Case Study which focuses on Jin Sheng-tan's Marginalia of the novel.( also named"Guanhuatang diwu caizishu Shuihuzhuan" ). The research takes Jin Sheng-tan's Marginalia of "Outlaws of the March"and Mao Zong-gang's Marginalia of "Romance of the three kingdoms"as examples to discuss their narrative grammar . At the same time, I will contrast their narrative theory,so as to analyze the boundary between Fictional narrative and Historical narrative. Applying research method of Narratologies,hoping to illustrate their narrative grammar. In the word,I comparison narrative theory between Chinese and Western.