玉勒是古老的玉饰品种之一。早在红山文化、良渚文化墓葬中均有出土。勒子的形制多以圆柱形为主,中心有一个贯通竖直的穿孔,便于穿挂。圆形勒子又可分为圆柱形、枣核型、束腰圆柱形等,带棱的勒子有三角形、四方柱形、六方柱形、八方柱形等。红山文化出土的勒形管件一般以素面居多(图1),偶有带纹饰的,实属珍罕(图2)。良渚文化出土的勒形管件有些已经出现了刻饰纹饰的做法,尤其是方形勒形器上开始琢刻了一些十分精美的 Yule is one of the oldest jade ornaments. As early as the Hongshan culture, Liangzhu culture tombs are unearthed. Le son’s shape mostly cylindrical-shaped, the center has a vertical through-hole, easy to wear hanging. Round lizards can be divided into cylindrical, jujube-type, beam waist cylinder, with the edge of the child has a triangle, square column, hexagonal column, octagonal column and so on. Hongshan culture unearthed tube generally prime prime (Figure 1), occasionally decorated with, it is rare (Figure 2). Something has already appeared in the decorative Leishong unearthed in Liangzhu culture, especially in the case of the square shapeler,