As we all know, design pays attention to many contents. For some jewelry box jewelry industry, there are special structures and needs. Today, we will talk about jewelry design. Jewelry design is mainly a process of creating three-dimensional modeling. This paper briefly introduces the elements of three-dimensional modeling (shape, color and texture) and the application of their forms in jewelry design. Plane composition is a special study of plane modeling. It starts with the study of the elements of graphics and pictures, analyzes the elements of graphics modeling, and studies the general rules of graphics and pictures through repeated composition tests to improve the ability of graphics modeling. Three-dimensional composition is to extract its constituent elements from various three-dimensional modeling for analysis. From the texture treatment of form to the construction of three-dimensional form, from the modeling of single body to the spatial combination of form, the materials, tools and techniques are analyzed and studied accordingly. Three-dimensional form is gradually constructed from plane materials to improve the ability of feeling, cognition and creative thinking in three-dimensional space. The ontology of jewelry design is the extension of points, lines and surfaces in three-dimensional space. Jewelry design and processing are divided into different ways according to the composition of the body: the body formed by line extension is called linear body, the body formed by surface extension is called face material body, and the new body obtained by the change of the body itself is called block material body. Line body: The line body is characterized by length, showing lightness and tension, with a sense of extension and movement; In the process of wire forming, different pairs of wires can get different fabrics, thus forming different feelings such as staggered feeling, rhythm feeling, layering feeling and stretching feeling. Wires include hard wires. There are frame structure, grid structure, single modeling and so on. Integral modeling refers to fixing a single hard wire one by one and rotating it. The forms are emission, gradual change, rotation and so on. , and then staggered, overlapped and interspersed to form various shapes. The key point of modeling is to create a sense of order and rhythm through the up and down accumulation of wires and the continuous development of front, back, left and right; And flexible wires. There are some ways to build a flexible cord, such as stretching and knotting. Knots are designed by different weaving and knotting methods, which can be widely used in jewelry design made of some nonmetals (silk thread, plastic, etc.). ). In fact, the traditional weaving art of our country and the jewelry of some ethnic minorities all use this form for artistic modeling. In modern jewelry technology, metal materials are sometimes modeled with soft silk, such as necklaces and knots woven with gold wire. Jewelry design, processing and composition are modern modeling concepts, and he studies modeling. The concept of "shape" here includes two-dimensional plane "painting" and three-dimensional "shape-body". Therefore, the study of form by constructivism includes two aspects: plane graphics and three-dimensional form. At the same time, in order to make the form more eye-catching, we should also study the colors that play an important role in visual effects. Therefore, graphics, shapes and colors constitute three main aspects of composition research. Constitutionalism actually includes three parts: plane, three-dimensional and color. The color composition of jewelry design and processing is to study the color law. This paper mainly studies the phenomenon and essence of color, color expression, color perception, color collocation, color composition law and so on.