An objective of the present invention is to provide a fire-extinguishing bomb rocket which is loaded in an unmanned aerial vehicle, uses propulsion of fire-extinguishing chemicals and water by compressed gas to quickly reach a fire place, and releases the fire-extinguishing chemicals in stages to efficiently suppress a fire. To this end, the fire-extinguishing bomb rocket comprises: a propulsion unit making up a rear portion of a fire-extinguishing bomb, separating and storing compressed gas and first chemicals for generation of primary propulsion and fire extinguishing, and generating first propulsion by injection of the first chemicals by the compressed gas; and a warhead unit installed on the front end of the propulsion unit as a body of the same diameter as the propulsion unit to make up a front body of the fire-extinguishing bomb, separate and store compressed gas and second chemicals for generation of secondary propulsion and fire extinguishing, and generate secondary propulsion by injection of the second chemicals by the compressed gas. The fire-extinguishing bomb rocket is separably fixed and loaded on a rocket launcher in a rocket loading compartment of an unmanned aerial vehicle, is separated and launched from the rocket launcher by the primary propulsion by injection of the first chemicals of the propulsion unit, and is accelerated by the secondary propulsion by injection of the second chemicals of the warhead unit. The injection of the first chemicals and the injection of the second chemicals of the warhead unit are carried out in stages to load the fire-extinguishing bomb rocket in the unmanned aerial vehicle. The fire-extinguishing bomb rocket can quickly reach a fire place by using propulsion of fire-extinguishing chemicals and water by compressed gas. The fire-extinguishing chemicals can be released in stages while moving to the fire place after being launched from the unmanned aerial vehicle or after reaching the fire place.;COPYRIGHT KIPO 2020
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