The utility model discloses a cannon cracker firing device mainly including a metal cylinder, an electronic lighter, a lever, a support handle, a U-shaped slot, and an airflow orifice, wherein the upper part of the front metal cylinder is arranged with the U-shaped slot the bottom part of which is provided with the electronic lighter. The side wall of the metal cylinder is communicated with the support handle and the lever. An ignition switch is arranged on the lever which is close to one end of the metal cylinder. The electronic lighter ignites the cannon cracker fusee. The other end of the metal cylinder is provided with the airflow orifice which is convenient for the discharging of powerful airflow to fire the cannon cracker and avoid the firer from being hurt. The utility model greatly improves the security when firing the cannon cracker and has the advantages of simple structure, few parts, low cost, and easy use.