The Alkali-proof fiberglass mesh uses the machine-woven fiberglass material of ZrO2-containing as material, and is immersed and coated by macromolecular alkali-resistant emulsion. The fiberglass mesh has good alkali-resistance and flexility, and its strength of longitude and latitude conform to national JG158-2004 standard, so it is widely used for exterior insulation system, water-proof and splitting-proof of external walls of building.