RFID (Radio Frequency Identification) technology is now in widespread use in various applications. As a result of its not only has rewritable characteristic and also accesses the information rapidly. The supply chains usually use the RFID technology to manage the goods, but there is an important secure issue of tag ownership transfer. This paper proposes a secure RFID tag ownership transfer protocol not only can provide identity authentication, forward security, new owner privacy, and old owner privacy but also prevent replay attack and DoS attack.