The invention discloses an anti-falling heat insulation fireproof plate, which comprises a plate body, wherein the plate body is in a square shape; the plate body is made of polyurethane hard foam materials; a flame resistant layer is arranged above the plate body; a sawtooth-shaped connecting groove is formed in one side of the plate body; a sawtooth-shaped convex block corresponding to the connecting groove is arranged at the other side of the plate body; a heat insulation layer is arranged inside the plate body; a metal plate is arranged under the heat insulation layer; folding angles are arranged at the two ends of the metal plate; screw nuts are connected under the metal plate; the screw nuts are connected with a fixing rod; the fixing rod extends to a position under the plate body; one side of the fixing rod is provided with a groove. The anti-falling heat insulation fireproof plate has the advantages that the structure is simple; a wall penetrating fixing method is used; the falling cannot easily occur; the heat insulation performance and the fireproof performance reach the standard; the service life is 3 to 4 times of that of an ordinary heat insulation plate; economy and substantial benefits are realized; the anti-falling heat insulation fireproof plate is worth of being popularized.