Abstract: Aiming at more efficient and reliable storage and management of RFID tag data, it designed a management system of RFID tag data, based on cloud storage, and proposed a data integrity check algorithm, based on Hash function. According to the field of the RFID tag data, the algorithm generated a unique checksum to confirm whether the data stored in the RFID tag was damaged. If RFID tag data had been damaged, the corresponding RFID tag data can be read via any network from the cloud storage system to recover its data.