The application of vacuum coating technology in acrylic industry has greatly expanded its application in various fields. Through PVD, acrylic products can show a good metal texture, improve the appearance and decoration of acrylic products. At the same time, due to the metallization effect, its electrical, thermal and corrosion resistance properties are greatly improved, and the mechanical strength of its surface is improved. After the surface of acrylic products is coated with a certain metal film by vacuum coating, it will have the color of the metal, thus playing a surface decoration function, such as aluminum, chromium, brass, stainless steel, etc. have different colors. Using acrylic instead of metal to produce some parts with complex shape can save a lot of working procedures, improve work efficiency and save a lot of metal materials. If the coating layer is aluminum, it can also be colored by coating or other methods to obtain various colors, and the decoration effect is very good.