Lianghan biji 兩漢筆記 "Brush notes to the two Han dynasties" is a historical critique of the Former 前漢 (206 BCE-8 CE) and Later Han 後漢 (25-220 CE) periods written by the Song period 宋 (960-1279) scholar Qian Shi 錢時 (1175—1244). He also wrote the books Sishu guanjian 四書管見 and Rongtang shujie 融堂書解.
The first chapters of the 12-juan long Lianghan biji is a collection of thoughts on Han-period history, while the largest part of the book is an analysis of historical events and political decisions. One of Qian Shi's main points is the regional administrative system practiced under the Han, with princes and meritorious ministers being given small territories for their own use. This was, according to Qian, a wrong system and doomed to die.