Basalt fiber surface felt has the dual functions of glass fiber surface felt and carbon fiber surface felt. On the surface of the composite product, a resin-rich layer with a resin content of more than 80% can be formed, so that the surface of the product has a bright and smooth surface, and the product's anti-leakage and anti-corrosion capabilities are improved. The binder of the basalt fiber surface mat has good compatibility with the resin, which can improve the moldability of the profiled composite material. It is also the material of choice for pultrusion and winding forming composite materials.