本文从当时黑暗的社会环境不允许、蔡婆婆救窦娥的时间不够、蔡婆婆没有足够钱财和人脉、蔡婆婆的软弱性格、为表达戏剧主旨关汉卿的刻意安排几个方面,对蔡婆婆不救窦娥的原因进行了深入的分析。从而更深刻的体会关汉卿《窦娥冤》所传达的精神实质。 This article from the dark social environment is not allowed, Tsai save her time is not enough, Tsai mother does not have enough money and contacts, Tsai mother’s weak personality, to express the main theme of Guan Hanqing drama arrangements several aspects of Tsai Mother save Dou E’s reasons for a thorough analysis. Thus a deeper understanding of Guan Hanqing “Dou’e injustice” to convey the spirit of substance.