The invention belongs to the field of porcelain and in particular relates to a porcelain glaze and preparation and use methods thereof. The porcelain glaze is composed of the following raw materials in parts by weight: kaolin, potassium feldspar, calcite, quartz, plant ash, fluorite, ox bone ash, soda lime, frit and bentonite, wherein the frit is composed of the following raw materials in parts byweight: silica, aluminum oxide, boric acid, potassium carbonate and sodium carbonate. The preparation and use methods thereof comprise the following steps: preparing the glaze, firing a liquefied gaskiln and the like. The glaze has quenching resistance, gloss of the glaze is increased, the highly wear-resistant transparent microcrystalline frit glaze is obtained, the firing method is scientificand effective compared with the traditional firing manner, the firing time is long, and the transmutation effect is excellent.