《后汉书知意》是刘咸炘《四史知意》之一。刘氏博采众家,引证丰富,从史法和史识的角度对前人关于《后汉书》的研究进行史学批评和辨析,并对《后汉书》的篇体和识旨提出自己的看法和评价。本文以《后汉书知意》为考察对象,分析了《后汉书知意》的撰写原因和体例,从史学史角度探讨刘咸炘著史需明确史体,读史应察变观风重源流的史学观,从中可见刘氏的史学意识。 “Post-Han Zhi Zhi Yi” is one of Liu Xianti’s “four-historian’s conception”. Liu Bocaizhongqun, rich citation, from the perspective of history and history of the predecessors on the “Post-Han” research criticism and analysis of history, and the “Post-Han” articles and opinions put forward their own views And evaluation. This article takes the “Later Han’s Book of Knowledge” as the object of study, analyzes the writing reason and style of “Later Han’s Book of Knowledge”, and discusses the historiography that Liu Xianghong holds the book of history, , From which Liu’s historical awareness can be seen.