The utility model relates to a long-range multi-barrel fire-extinguishing rocket and a launching apparatus thereof. Launching barrels (2) are horizontally and vertically arranged in a launcher (1), which is a box; a hydraulic electric lifter (5) is arranged between the launcher (1) and a gimbaled base (3); a launching ignition system (6), a positioning terminal system (7), a charging controller (8) and a storage battery (9) are arranged on the gimbaled base (3); the body structure of the rocket (4) consists of a sensor (10), an infrared sensor (11), an igniter (12), compressed fire-extinguishing dry powder (13), a heat-insulating board (14), a combustion chamber (15), an ignition door (16), a fairing (17) and a rocket shell (18), wherein the rocket shell (18) is made of a paper tube or plastic, and the heat-insulating board (14) is made of high temperature-resistant fibers and ceramic heat-insulating material. The utility model has the advantages of reliable control, quick response, extremely high fire-extinguishing efficiency and accurate fire scene strike, and cannot be affected by the distance of a fire scene, and in particular, the utility model has a special fire-extinguishing effect on a large-area strong fire scene, and can extinguish an initial fire within the shortest time.