The utility model relates to a cartridge case for launching fire extinguishing bombs, and belongs to the technical field of the fire extinguishing bombs. The cartridge case for launching the fire extinguishing bombs comprises a base shell and a case body. A circular metal plate is arranged at the bottom of the base shell, an igniter mounting hole is formed in the center of the circular plate of the base shell, the outer edge of the circular plate of the base shell extends forwards in the direction of the face of the plate to be provided with an annular connecting body, and an annular air closing groove is formed in the outer wall of the annular connecting body. The case body is a tubular part formed by rolling 30-35 layers of brown paper, every two layers of brown paper are fixedly bonded through glue, and the outer diameter of the case body is matched with the inner diameter of the annular connecting body of the base shell. The case body is inserted into the annular connecting body of the base shell, and the connecting positions of the case body and the annular connecting body of the base shell are bonded through glue. A sealing ring is arranged in the annular air closing groove of the annular connecting body of the base shell. The cartridge case for launching the fire extinguishing bombs is common in selected materials, easy and convenient to manufacture and assemble and low in price.