Biàn Bīn 卞彬, zì Shìwèi 士蔚, was a Liu-Song / Southern Qí 南齊 writer-official from Jǐyīn Yuānjù 濟陰冤句 (modern Hézé 菏澤 area, Shāndōng). His grandfather Biàn Sīzhī 卞嗣之 had served as commander of the central army (中軍將軍); his father Biàn Yánzhī 卞延之 was a magistrate of Shàngyú 上虞, famous for resigning by hurling his official cap to the ground when a superior tried to constrain him — a piece of bravado the son inherited and amplified. Biàn Bīn himself was described in NánQí shū 卷52 (文學傳) as bold and grand in bearing, learned, often given to drinking, fond of dressing in coarse cloth, eating from gourds and bark, and wearing the same silk cap for twelve years; he was repeatedly at odds with his colleagues. He held a sequence of clerkships and prefectures (西曹掾, 員外散騎侍郎, etc.) but never rose high, principally because his satirical writings — the Qínshòu juélù KR3i0051 Definitive Record of Birds and Beasts, the Sǎnyú fù 蝬魚賦 (Dried-Fish Encomium), and the Hámá fù 蝦蟆賦 (Toad Encomium) — directly lampooned the eunuch favorites of Qí Wǔdì 齊武帝 (Lǚ Wénxiǎn 呂文顯, Zhū Lóngzhī 朱隆之, the Lǚ Wén-prefixed eunuchs), earning him the inner court’s permanent hostility. He died in office as a prefect during the Yǒngyuán 永元 era (499–501) of the last Southern-Qí ruler, Dōnghūnhóu 東昏侯 Xiāo Bǎojuǎn. The CBDB entry (c_personid 589840) records his name without confident lifedates; the c. 437 / c. 500 bracket adopted here is the standard scholarly estimate, derived from the official-career chronology in his NánQí shū biography. His surviving œuvre — together with the brief fragments of his fù preserved in Yán Kějūn’s Quán Liáng wén 全梁文 (1836) — constitutes one of the most pointed corpora of late-fifth-century political satire.