The invention discloses a fiberglass sand-fixing net and a weaving method thereof. Aluminoborosilicate glass balls or soda-lime silicate glass balls are taken as a raw material; the fiberglass sand-fixing net is a mesh with the same width and the same density or the same width and two or more than two densities; the fabric weave is a leno weave. Fiber glass yarns are adopted and woven into leno weave fiberglass mesh gray fabric with different densities, and the gray fabric is coated with a water-soluble mixed coating. The fiberglass sand-fixing net has the advantages of high strength, high light resistance, anti-ultraviolet property, anti-aging property, flame retardancy, high-temperature resistance, corrosion resistance and the like, and can adapt to high illumination intensity and high temperature in deserts as well as corrosion of acid rain. The product is unique in weave structure, is provided with clear and uniform yarn holes, and is stable in structure, high in air permeability, wind permeability and the like; the fiberglass sand-fixing net with different mesh structures can achieve the sand-fixing effects under different conditions and environments.