The kitchen automatic fire extinguishing system is equipped with a sensing part for detecting fire, a gas shutoff devices for controlling the gas valve, detecting detectors, fire extinguishers and actuators to control the release of fire extinguishing agents. It consists of a fire extinguisher that operates automatically when fire occurs around the gas stove. when the gas is leaked, the gas valve is automatically shut off to prevent suffocation from gas leakage. It protects people and property by preventing explosion accident.