The invention relates to the technical field of identification equipment. The device is used for improving the batch identification rate of the RFID. The device comprises a connecting rod, cross beams, a suspension seat, mounting racks, an RFID antenna and a power driving device. The connecting rod is arranged in the front-back direction, two cross beams which are distributed at intervals in the front-back direction are arranged above the connecting rod; each cross beam is provided with a suspension seat capable of moving left and right along the cross beam; the bottom face of each suspensionseat is located below the cross beam and fixed to the corresponding position of the connecting rod, the mounting racks are fixed to the lower sides of the front end and the rear end of the connectingrod, an RFID antenna is installed on each mounting rack, and a power driving device capable of driving the connecting rod to move left and right relative to the cross beam is installed on the cross beam. The structure is reasonable and compact, the RFID antenna can move left and right by enabling the connecting rod to move left and right relative to the cross beam, so that the coverage area of RFID antenna identification can be expanded, the identification dead angle is reduced, the batch identification rate is improved, and the structure has the characteristics of being simple, convenient touse and high in batch identification rate.