The invention discloses an express automatic sorting device. The express automatic sorting device comprises a first conveyer, a second conveyer and a third conveyer. A first infrared sensor is arranged on one side of the top of the second conveyer, and a second infrared sensor is arranged on the other side of the top of the second conveyer. A controller is arranged on the side face of the second conveyer, a supporting seat is arranged on the side face of the first conveyer. A plurality of vertically-arranged vertical rods are welded at the top of the supporting seat, and supporting rods are arranged over transmission rollers. Radio frequency identification readers are arranged at the bottoms of the supporting rods, a plurality of mounting holes are formed in the side face of the supporting seat and located under the vertical rods, and air cylinders are fixed to the mounting holes. Pushing plates are fixed to the piston ends of the air cylinders, a plurality of collecting boxes are arranged on the other side face of the first conveyer, and the positions of the collecting boxes are corresponding to the pushing plates. The express automatic sorting device is novel in structure, creatively improved on the basis of the prior art, reasonable in structure, skillful in design and suitable for promotion.