Wollastonite powder is often used in building materials. It is a kind of non-toxic, odorless, and non-radioactive. It has gradually replaced asbestos, which is harmful to human health, and has become a new raw material for environmentally friendly building materials in the new century. After the special processing technology, the unique needle-like structure can be maintained, which greatly improves the impact resistance, bending strength, and abrasion resistance of materials such as calcium silicate board and fireproof board added with wollastonite needle-like powder. In the field of building materials, wollastonite will be more widely used.