The invention relates to full-automatic safety equipment for an excavation working face laneway. The full-automatic safety equipment for the excavation working face laneway is arranged at an air return throat of the excavation working face laneway in a range of 6 meters, is used for preventing and controlling accidents such as a fire, flood, and coal and gas outburst which occur to an excavation working face, and is characterized in that heavy supports are firmly fixed with laneway walls to form one whole body; a steel heavy air door is arranged between the heavy supports on the laneway walls; the steel heavy air door is controlled by a high pressure gas cylinder pneumatic press; and the high pressure gas cylinder pneumatic press is controlled by a high temperature flue gas sensor; and when the fire accident occurs to the excavation working face, the high temperature or flue gas acts on the high temperature flue gas sensor, the high temperature flue gas sensor controls the high pressure gas cylinder pneumatic press and the steel heavy air door is rapidly closed by the high pressure gas cylinder pneumatic press.