Pins, also known as brooches, originated in ancient civilizations. They were originally used to denote status, honor and status. Over time, brooches have changed in shape, material and design, evolving from traditional emblem designs to more stylish and personalized styles. The modern brooch is not only a fashion accessory, but also a tool for expressing personal interests, promoting brands, and uniting groups. They play an important role in social, business, political and other fields. The development of brooches is constantly innovating, including the use of new materials, 3D design, custom-made, etc., to meet people's needs for individuality and uniqueness.