The whole understanding of Zhuangzi's inner seven chapters is often reflected through the differences with the outer and miscellaneous chapters,which can be glimpsed from the title and meaning.The discussion on the specific structure of the seven inner chapters is gradually in-depth and refined,which can be summarized into five models:Sequential and consistent;Take Enjoyment in Untroubled Ease as the religion;Take Enjoyment in Untroubled Ease and The Adjustment of Controversies as the main theme;Take The Human World as the hub;Regard the seven inner chapters as the loop.The difference between different models lies in the different grasp of the inner seven chapters and the main themes of each.Clarifying and differentiating their views on the structure layout of the inner seven chapters and supplementing the academic review of this issue are conducive to further exploring the main idea and expression strategy of the inner seven chapters.