Basalt fiber is a continuous fiber drawn from natural basalt. It is produced by melting basalt rock at temperatures ranging from 1450℃ to 1500℃ and then rapidly drawing it through a platinum-rhodium alloy wire drawing die. Pure basalt fiber is typically brown in color. Basalt fiber is a new type of inorganic, environmentally friendly, high-performance fiber material, composed of oxides such as silicon dioxide, aluminum oxide, calcium oxide, magnesium oxide, iron oxide, and titanium dioxide. Basalt continuous fibers are not only highly durable but also possess excellent properties such as electrical insulation, corrosion resistance, and high-temperature resistance. Moreover, the production process of basalt fiber ensures minimal waste generation, low environmental pollution, and the ability of the product to biodegrade in the environment after disposal, posing no harm. Therefore, it is truly a green and environmentally friendly material. China has listed basalt fiber as one of the four key fibers for development (carbon fiber, aramid, ultra-high molecular weight polyethylene, and basalt fiber) and has achieved industrial production. Basalt continuous fibers have been widely used in various fields, including fiber-reinforced composites, friction materials, shipbuilding materials, thermal insulation materials, the automotive industry, high-temperature filtration fabrics, and protective applications.