作为新红学的代表性著作 ,《红楼梦辨》的成就常常被视做考证对索隐的全面胜利 ,或者是对胡适方法论的成功演绎。不过 ,单从论述的结论来制定方法的应用难免简化历史情境中的种种关系。本文试图从俞平伯先生自己不断倡导的“趣味”这一关键词入手 ,理解该书在红学这一复杂的关系背景中出现的原因以及引发的问题。 As a representative book of the New Learning of Red Mansions, the achievements of A Dream of Red Mansions are often regarded as the full victory of research on solitude or the successful deduction of Hu Shih’s methodology. However, the application of a method based solely on the conclusions of the discourse simplifies the relationships in historical contexts. This article attempts to start from the keyword of “interest” that Mr. Yu Pingbo advocated continuously and understand the reasons and the problems caused by the book in the background of the complex relationship between learning and learning.