The invention provides a fire extinguishing method, which is characterized in that: a fireworks agent is used as a heat source (energy) and a power source (driving gas), and the purpose of extinguishing fire can be achieved by the steps of igniting the fireworks agent when in use, enabling fire extinguishing compositions to generate a large number of fire extinguishing substances by means of high temperature resulting from the combustion of the fireworks agent, and jetting the fire extinguishing substances out together with the fireworks agent. Compared with traditional aerosol fire extinguishing system, gas fire extinguishing system and water-based fire extinguishing system, the fire extinguishing method of the invention is more efficient and safer.