The main components of wollastonite are SiO2 and CaO, with a content of more than 92%. In the production of glass fiber, it can partially replace quartz sand, pyrophyllite and limestone in the raw materials. At the same time, some silicon oxide and calcium oxide are introduced, which has better fluxing effect, reduces the melting temperature of the kiln, reduces carbon emission and achieves energy saving effect. At the same time, the hardening speed of fiber molding is increased and the glass melting rate is improved, improved glass fiber quality. The application of wollastonite in glass fiber and ceramic fiber solves the problem of refractory quartz sand and other materials, and the melting rate of the kiln is also increased accordingly, which greatly reduces the production cost.