带钩是我国古代王公贵族、文人武士固定衣着、钩连腰带、佩挂小件兵器和装饰物件所用的饰品,其材质多样、造型丰富、纹饰精美、工艺精湛。淮南市博物馆藏有一件西汉北斗七星铜带钩,形制较为罕见。本文拟通过对带钩类别、发展、用途,以及北斗七星在古代人们心目中的重要性等方面的研究,论证这件西汉北斗七星铜带钩丰富的文化内涵、工艺水平和重要的艺术价值。 Belt hook is an ancient Chinese aristocracy, scholar samurai fixed clothing, hook with belt, wearing small pieces of weapons and decorative objects used jewelry, the material diversity, rich shape, exquisite decoration, exquisite workmanship. Huainan Museum possession of a Western Han Dynasty Big Dipper copper hook, the shape is relatively rare. This article intends to demonstrate the rich cultural connotation, technological level and important artistic value of this Western Han dynasties copper belt hook through the research on the category, development and use of hooks and the importance of Big Dipper in the ancient people.