The utility model discloses a partitioning type paint spray booth, include air supply air conditioner and outdoor air supply main line including paint spray booth's body and setting at external air supply system, exhaust system and the water circulating system in paint spray booth, air supply system, the exhaust system is including air exhaust fan, exhaust chimney, air exhaust main line and the active carbon adsorption device of setting on the main line of airing exhaust, water circulating system includes circulating water pond, circulating pump and hydrologic cycle main line, the paint spraybooth body divide into four units that spray paint of A, B, C and D, and A, C spray paint along the paint spray booth vertical central line interval of body symmetry setting, B, D unit along the paintspray booth vertical central line interval of the body symmetry setting of spraying paint. The utility model discloses the advantage lies in that this paint spray booth adopts the partitioning type operation, and independent spraying operation all can be realized to every unit that sprays paint promptly, and during the spraying, according to treating that the spraying zone location optionally that the work piece is located opens and treats that the corresponding unit that sprays paint of spraying work piece carries out the spraying operation, economize on electricity, water conservation, energy -conserving effect are showing, have improved work efficiency, effective reduction in production cost.