The utility model discloses a profile rotation type automatic palletizing device. The profile rotation type automatic palletizing device comprises a steel moving rotary device, a first-stage chain, a second-stage chain, a third-stage chain and a fourth-stage chain, wherein the first-stage chain, the second-stage chain, the third-stage chain and the fourth-stage chain are sequentially connected, and the steel moving rotary device, the first-stage chain, the second-stage chain, the third-stage chain and the fourth-stage chain are all connected with a PLC (Programmable Logic Controller) control system; one end of the first-stage chain is provided with an aligning and straightening device and a first steel blocking device, and the other end of the first-stage chain is connected with the second-stage chain through a first transmission device; the second-stage chain is provided with a rack conveying device and a waste picking lifting device, and the second-stage chain is connected with the three-stage chain; the third-stage chain is provided with an aligning roller way, a baffle and second steel blocking devices, and the aligning roller way and the baffle are arranged between the two steel blocking devices; the third-stage chain is connected with the fourth-stage chain through the second transmission device; and the fourth-stage device is provided with a steel distribution device. The profile rotation type automatic palletizing device has the advantages of reducing labor intensity, improving production efficiency, reducing product costs, and being simple in structure and high in safety and capable of achieving production of multiple specifications and the like.