Cài Qīng 蔡清 (1453–1508), zì Jièfū 介夫, hào Xūzhāi 虛齋, posthumous title Wénzhuāng 文莊, was a mid-Míng Confucian scholar and official from Jìnjiāng 晉江 (Quánzhōu 泉州, Fújiàn 福建). He passed the jìnshì examination in chénghuà 成化 jiǎchén 甲辰 = 1484, and rose through provincial education posts to become Chancellor of the Nánjīng Imperial Academy (Nánjīng Guózǐjiàn jìjǔ 南京國子監祭酒). His biography is in the Míng shǐ 明史 rúlín zhuàn 儒林傳.
Cài Qīng is the founding figure of the Mǐnxué 閩學 (Fújiàn Confucian) revival of Zhū Xī orthodoxy in the mid Míng. His school produced a long line of distinguished Fújiàn Yìxué writers (the so-called Quánzhōu Yì-school 泉州易學). His principal work, the Yìjīng méng yǐn 易經蒙引 (KR1a0092), is a sustained gloss on Zhū Xī’s Zhōuyì běnyì 周易本義 (KR1a0036), explicitly framed in the manner of an “introductory pulling” (méng yǐn 蒙引) for students; despite its formal subordination to the Běnyì, the work in many places quietly disagrees with Zhū Xī, and the Sìkù editors single Cài out as the Míng counterpart to Zhū Xī’s own willingness to differ from his teacher Chéng Yí: “if Master Zhū did not entirely follow the Yìchuán and yet was the one most able to bring out its meaning, then Cài Qīng did not entirely follow the Běnyì and yet was the one most able to bring out its meaning.” His other surviving works include the Sìshū méng yǐn 四書蒙引 (a parallel gloss on Zhū Xī’s Sìshū jízhù) and the Xūzhāi kàn shū bǐyào 虛齋看書筆要.