Abstract: This invention relates to an automatic fire extinguishing equipment adapted to direct a nozzle towards the position of a flame starting within a supervising zone so as to discharge a fire extinguishing liquid to extinguish the flame, which equipment comprises a flame detecting apparatus including a detecting element for detecting a flame and device for scanning and driving the detecting element in a horizontal direction and a vertical direction, for searching the supervising zone and outputting data concerning the flames; a storage section for storing the detection data from the flame detecting apparatus; a fire extinguishment controlling section which decides the sizes of the distributed flames on the basis of the storage data from said storage section; a nozzle assembly including the nozzle and device for controlling the direction of the nozzle in response to a control from the fire extinguishment controlling section.