The whole allegorical form. In this paper, the dialogue between two fictional characters, Hebo and Beihai Ruo, shows that the whole story is a vivid fable. In the pre-Qin philosophers, stories are often cited to explain the truth, but like this, the whole story is allegorical, but rarely; Moreover, the fable here is not a quotation, but Zhuangzi's own fiction, which is also an important feature of Zhuangzi's fable. The basic characteristics of fable are, first of all, it means that it is philosophical. In this paper, Hebo is set as the opposite of Zhuangzi Thought, while Beihai Ruo is the incarnation of Zhuangzi himself. Through the dialogue between them and the contrast between the positive and negative ideological realms, Zhuangzi's philosophy of endless knowledge has been clearly publicized. Another obvious feature of fables is that they speak with vivid images, avoiding boring and abstract reasoning, combining philosophy with images, and having the effect of turning abstract difficulties into concrete feelings.