By more pieces of different thickness of the transparent float glass and more pieces of PVB films scientifically combination becomes, in order to strengthen the bulletproof glass, glass and thickness of performance are increased the thickness of PVB. Because of glass and PVB films agglutinate very firm, almost as a whole, and because of glass has high hardness and the PVB films has excellent toughness, when bullets into contact with glass, their impact energy was weakened to a very low degree and zero, so could not penetrate. Similarly, metal impact also only will shatter glass and could not penetrate, and therefore plays bulletproof anti-theft effect. Each single piece of glass and thickness of finished products of glass aggregate thickness according to using field and decide. Bullet-proof glass can be used for military defense, bank bar keeper of glass, jewelry and jade article, gold and silver jewelry and other valuables reveal ark and certain other work, place to live.