《桧风·秦冠》一诗，从毛、郑至清儒均不能跳出诗序“刺不能三年”（服丧）说。现代说诗者亦多因循旧说，虽偶有摆脱孝子阴影的努力，但又陷于新的困惑。本文从“素冠是顶什么冠”打开缺口，结合辨析古今种种诗说的疑惑，最终从《礼记·曲礼》中找到坚实的旁证，证成《素冠》原来是妻子为送别离境去国的丈夫而唱的歌。 “Cypriot wind Qin Guan” a poem, from Mao, Zheng Zhi Qing Confucianism can not jump out of poetry “thorn can not three years ” (funeral) said. Modern poet also mostly follow the old saying, although occasionally get rid of the shadow of filial son efforts, but in a new confusion. This article from the “crown is the crown what ” open the gap, combined with the analysis of ancient and modern variety of poetry said the doubts, and ultimately from the “Book of Rites music” to find a solid circumstantial evidence that the “prime crown” was originally his wife to send Do not leave the country to go to her husband and sing songs.