The invention relates to a workpiece lifting spraying production line which comprises a lifting conveying device, a feeding station, a spray cleaning station, a spraying station, a drying station anda discharging station. The lifting conveying device comprises a conveying rail in the shape of a kidney-shaped ring, and multiple lifting frames arranged on the lower side of the conveying rail. The spray cleaning station comprises a spray cleaning box, and a first through groove for the lower ends of the lifting frames to be inserted into the spray cleaning box conveniently is formed in the upperside of the spray cleaning box. Multiple gas spraying guns capable of spraying gases to workpieces are arranged at the positions, corresponding to the lifting frame conveying track, of the two sidesof the spray cleaning box. A blanking groove is fixedly connected to the position, corresponding to the lower side of the lifting frame, of the spray cleaning box along the movement track of the lifting frame, and a cloth bag dust collecting bag with an opening formed in the upper end is arranged on the lower side of the blanking groove. A draught fan is fixedly connected to the position, corresponding to the lower side of the cloth bag dust collecting bag, of the spray cleaning box. First flexible dust blocking curtains are further fixedly connected to the two ends of the spray cleaning box.The workpiece lifting spraying production line has the beneficial effects that the workpieces can be automatically cleaned, the labor intensity is lowered, and the work efficiency is improved.