The utility model discloses a high-rise fire extinguishing device which comprises a support frame and a launching device arranged on the support frame, wherein a fire extinguishing bomb is arranged in the launching device. By adopting the technical scheme, the high-rise fire extinguishing device disclosed by the utility model backward throws a balance with the same mass as the fire extinguishing bomb during launching so as to offset the recoil based on a finite space launching principle, and balanced launching is realized. A high-pressure gunpowder gas is closed in a chamber by front and rear pistons to realize tiny light and tiny flame. The fire extinguishing bomb with a high-effect fire extinguishing agent is accurately shot into a room of a high-rise building (through a window and the like) on fire by use of the launching device; the fire extinguishing bomb passes through glass or other obstacles and explodes at high temperature or in the case of collision; and the high-effect fire extinguishing agent disperses to fill the whole room so as to achieve an aim of fire extinguishment.