The invention discloses an automatic fire alarm fire-fighting 
system. The automatic fire alarm fire-fighting 
system comprises a spraying pump, spraying heads, a wet alarm valve, electromagnetic valves, a 
water flow indicator, a water motor alarm, a fire hydrant, a high-level water tank and a 
check valve. The fire hydrant is connected to the wet alarm valve, the wet alarm valve is connected with a safety 
signal valve, the safety 
signal valve is connected with the 
water flow indicator, a closed-type spraying head and an open-type spraying head are arranged on the 
water flow indictor through the electromagnetic valves, and the closed-type spraying head is connected to a 
tail end 
water testing device. A pressure gauge, a delayer and the water motor alarm are sequentially connected to the wet alarm valve. The wet alarm valve is arranged between the high-level water tank and the 
check valve, and the 
check valve is connected to a fire-water pond through the spraying pump and a 
brake valve. The automatic fire alarm fire-fighting 
system is safe, reliable, and capable of discovering and notifying 
fire disasters as soon as possible, the fire disaster damage is prevented and reduced, and the fire 
extinction efficiency of a spraying system is high.