The utility model relates to a fire-extinguishing object, particularly a novel fire-extinguishing bomb and emission device thereof. The novel fire-extinguishing bomb comprises an outer container, an inner container and a blasting fuse. The emission device comprises a gun frame, an orbit, a firing gun and a firing gun controller. On design, the utility model is reasonable; on technology, the utility model is perfect. When foam is ejected from an ejecting port, ejecting pressure is increased, and the ejecting performance of the existing fire-extinguishing bomb is perfected. Meanwhile, the emission device is simple but is best. Thus, the novel fire-extinguishing bomb of the utility model is conveniently emitted. The utility model is especially suitable for the fire extinguishing of high buildings.