With the rapid development of internet technology, some innovative fashion product are increasingly showed in the way of three-dimensional virtual display. Taking fashion jewelry as an example, the virtual 3D display method of product is studied by Inventor which is parametric 3D design software for efficient modeling and animation developed by the Autodesk Company. By discussing the methods of part feature creation and assembly design, the real simulation of the product is carried out. Three-dimensional animation techniques, such as fade animation, components animation and camera animation are used to depict product features and animation effects.