Along with the change of traditional Chinese novels' style, the image of narrator in "Ju lin wai shih" has its corresponding transformation. "Ju lin wai shih"'s narrator takes a position of objective stealth-like, no doubt, which promotes the narrative to the pursuit of the objective reality of illusion, and finally reflects the fair-minded about the author's attitude. However, when there is a inner contradiction between the intervention of narrator's emotion and the restriction of narrator's authority which causes the reliability problems arising, it will undoubtedly affects readers for comprehension and interpretation of the meaning of novle. This article attempts to give up the views of traditional criticism, but reviews on the image of narrator and the reliable problems of narration in "Ju lin wai shih".