A bulletproof, explosion-proof, fire-proof, and anti-theft security door, comprising at least one door leaf and an anti-theft lock arranged on the door leaf, the door leaf is composed of a double-layer panel layer, and a double-layer bulletproof plate layer is inlaid inside the panel of the panel layer, and the The middle of the double-layer bulletproof plate layer is provided with an explosion-proof fireproof layer. The safety performance of this kind of bulletproof fire door is very good, and it has a very good technical effect.