An air cooling type absorbing cooler provided with an air cooling type absorber having a structure in which, in cooling the absorbing solution and the refrigerant vapor by air, the absorbing solution and the refrigerant vapor on the inlet side of the absorber are cooled by the cooling air on the outlet side of the absorber, while the absorbing solution on the outlet side of the absorber is cooled by the cooling air on the outlet side. By causing the absorbing solution sprayed into the absorber to flow downward and the air for cooling the absorbing solution and the refrigerant vapor to flow upward, the absorbing solution having a temperature which is approximately equal to the outlet temperature of the absorber is cooled by the air which has a temperature approximately equal to the inlet temperature of the cooling air. The absorbing solution supplied from the absorber is cooled by the refrigerant vapor evaporated by the evaporator.