Wollastonite ultrafine acicular powder is added to PA, PP, PE, PVC, ABS, PS, PC and other resins, which can significantly improve the physical properties of the resin and expand the application field of the product. Its unique structure and performance endow the resin with better performance. Compared with other fillers, wollastonite has excellent electrical, mechanical and thermodynamic properties. The amount of expensive pigments can be reduced without affecting the quality. Wollastonite moisture content is low, light color with luster, shape stability, reinforcement properties, often replace part of titanium dioxide, white carbon black, glass fiber, etc. are used in nylon molding materials, can significantly improve the tensile strength, bending strength and thermal deformation temperature of products, reduce molding shrinkage and warping deformation of plastic products, greatly reduce production costs.