With the development of technology, the traditional production methods of the jewelry manufacturing industry have undergone changes. 3D printing and CNC carving have gradually replaced the manual patterning method, which has greatly improved the production efficiency and resource ratio of the factory. Among them, 3D printing technology has powerful modeling ability and is suitable for advanced customized products. However, due to the immature processing of precious metal materials at this stage and the high cost, the large-scale popularization of 3D printing technology is limited. In contrast, CNC fine engraving is formed once, and the steps such as mold casting and mold execution are omitted during processing, and it directly enters the post-processing links such as stone setting, polishing, and electroplating, which improves the production efficiency of jewelry, reduces production costs, and improves jewelry production. Industry standards for product quality and aesthetics. The CNC machining process is suitable for the production of light luxury jewelry and is widely used in the jewelry manufacturing industry. And there are many types of CNC machine tools, including CNC lathes, CNC milling machines, CNC drilling machines, CNC grinding machines, turning-milling machine tools and machining centers, etc., which can basically meet the processing needs of the current jewelry manufacturing industry for a variety of materials.