Quwei Jiuwen (曲洧旧闻, "Old Stories from Quwei") is a Chinese biji-style history book written by the Song dynasty diplomat Zhu Bian during his captivity in Jurchen-ruled Jin dynasty territory. He finished the book in 1138, and brought it back to his country in 1143, a year before his death.

Zhu Bian volunteered for a diplomatic mission to Jin in 1127 to visit the captured Song emperors Emperor Qinzong and Emperor Huizong, but he was detained and not allowed to return until 1143. He was humiliated but remained loyal to the Song. It was during this period that he wrote Quwei Jiuwen based on what he had heard during his youth in Quwei (modern Xinzheng), where he lived before the Jurchens invaded.

Quwei Jiuwen in 10 chapters contains many stories about the Song emperors and their subjects. In particular, Zhu Bian blamed the decline and fall of Northern Song on the policies of Wang Anshi and Cai Jing. Quwei Jiuwen also contains his personal experience with Buddhism, as well as notes on poetry and supernatural stories.

《曲洧旧闻》是南宋时期由官员、文学家朱弁所撰写的文言小说集，共十卷。《文献通考》载有弁《曲洧旧闻》一卷、《杂书》一卷、《骫骳说》一卷。

《曲洧旧闻》创作于作者被羁留在金国期间。作品追忆并记录了北宋及南宋初期的朝野遗事、社会风情和士大夫轶闻，展现了作者的高度爱国热情及对北宋灭亡、南宋贫弱的理性反思。作品内容丰富、情节生动、文字雅洁、活泼风趣，具有较高的文学价值和史料价值。

建炎二年(1128)，朱弁出使金国后被迫羁留十六年，期间撰写此书回忆故国。此书主要记录陈桥兵变后的北宋初年到及至南宋初年的朝野遗事、社会风情，例如《旧闻》提到北宋末年「王将明（王黼）当国时，公然受贿赂，卖官鬻爵，至有定价」，《四库全书》收录该书，并称其「意在申明北宋一代兴衰治乱之由，深于史事有补，实非小说家流也」。

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