The utility model discloses a rectification carbon entrapment absorption tower, including the tower body that is equipped with flue gas inlet and exhanst gas outlet, the tower body inner chamber is equipped with the filler section and is used for spraying the spray set of absorbent, flue gas inlet is located the section below of packing, the exhanst gas outlet is located the spray set top, be provided with fairing between spray set and the filler section, the utility model discloses a rectification carbon entrapment absorption tower, the flue gas moves from bottom to top in the tower body inner chamber, and the absorbent moves from bottom to top, owing to add fairing, locates the gas -liquid at fairing and fully contacts and the mass transfer to reach or be close the effect of packing layer mass transfer, so as to keeps the whole mass transfer ability on absorption tower under the condition that reduces the packing layer, and the fairing resistance is low, has reduced the whole resistance on absorption tower, fairing makes the tower body inner chamber have enough spaces simultaneously, effectively reduces the possibility of the general tower in absorption tower.