宋金铜镜中有一类铜镜纹饰一直被称为犀牛望月纹或吴牛喘月纹。通过对纹饰内涵的释读,发现此类铜镜纹饰展示的是大禹治水文化,称为铁牛镇水纹镜。本文根据目前公开发表的资料及首都博物馆馆藏实物按铜镜纹饰特点归纳出9种类型。从历史遗存、古代文献记载等多层次的历史文化角度佐证铜镜纹饰是大禹治水题材的新观点。铜镜纹饰从一个层面反映了金代统治者建都中都后的汉文化进程。 Bronze mirrors in the Song and Jin bronze mirrors have been called Rhino Mochizuki or Wu Niu Chuan Crescent Moon. Through the interpretations of ornamentation content, found that such bronze mirror decoration is Dayu flood control culture, known as the iron cattle town water mirror. This article according to the currently published information and the capital museum collection according to the characteristics of bronze mirrors are summarized in nine types. From the historical relics, ancient literature records and other multi-level historical and cultural point of view to prove bronze mirrors is Dayu governance theme of the new point of view. Bronze mirrors reflect the cultural process of Han dynasty in the capital after the Jin dynasty ruled by one aspect.