The utility model relates to an improved acid mist absorption device. The device comprises a solution tank, a water distribution pore plate is transversely arranged in the solution tank, water spraying holes are formed in the water distribution pore plate, a water inlet pipe parallel to the water distribution pore plate is arranged above the water distribution pore plate, an opening is formed in the bottom of the water inlet pipe, water is directly sprayed to the water distribution pore plate from the opening, an air inlet is connected to the lower portion of the solution tank, and a water outlet is connected to the bottom. During actual use, the flow and the acid inlet speed of the water inlet pipe are adjusted according to the amount of acid mist, and the problem that the acid mist leaksfrom the tank body due to the fact that the spraying water amount is not matched with the acid mist amount is solved; according to the acid mist absorption device, the acid mist absorption effect isgreatly improved, and harm of acid mist to human bodies and corrosion to equipment are reduced.