通常讲:“四乳禽兽纹镜,指的是镜背有四乳,四乳间饰有禽鸟、螭(虺)、兽、四神、羽人等纹饰的铜镜。”~([1])镜体多为圆形,钮多为圆钮或半圆形钮,钮座以四叶纹钮座、并蒂连珠纹钮座、圆钮座、方钮座居多,“钮座区外的装饰主要由整体上呈旋转的短弧线、正方向的直线纹组成,主纹一般都夹饰在两周短线纹之间”~([2]),多宽素缘。四乳禽兽纹镜,以镜背突出的四乳钉为主要特点,《博古图录》称之为四乳鉴。与战国 Generally speaking: “four milk animal profile mirror, refers to the back of the mirror with four milk, four breasts decorated with birds, 螭 (虺), animal, four gods, [1]) The mirror body is mostly round, knobs are mostly round button or semi-circular button, the button seat to the four-leaf button seat, pedicle with pearl button seat, round button seat, side button seat mostly, ”button Outside the main seat decoration is mainly by the rotation of the short arc, the positive straight line composition, the main pattern are generally embossed between the two short lines between “~ ([2]), more wide prime margin. Four milk animal profile mirror to the back of the mirror protruding four nail as the main feature, ”Bo Gulu recorded" called four milk Kam. And Warring States