The utility model provides a construction waste treatment line which comprises a feeding device, a primary crushing device, a primary vibrating screen, a positive-pressure winnowing impurity removal device, a manual picking device, a transition bin, a secondary crushing device and a negative-pressure winnowing impurity removal device which are arranged from front to back in the treatment process direction, and all the devices are connected through a conveying device. According to the utility model, four impurity removal processes of residue soil screening, positive-pressure winnowing, manual picking and negative-pressure separation are carried out in sequence; positive-pressure winnowing is used for blowing away impurities in large materials after primary crushing and before secondary crushing, a negative-pressure separation technology is applied to impurity removal of regenerated finished product materials after secondary crushing, fine, thin and light impurities in the regenerated finished product materials are adsorbed and removed, the impurity content of the regenerated finished product materials is reduced to the maximum extent, and the quality of regenerated aggregates is guaranteed. The transition bin is arranged between the primary crushing device and the secondary crushing device, so that the production process is simplified to the greatest extent, and the production and operation cost is reduced; and dust emission and noise completely reach the standard.