The research on the tracing system of auto parts in Fujian based on RFID technology can effectively provide a solution for the chaos market of auto parts in Fujian Province by tracing the problematic parts and finding the related company. This study uses the RFID tags fixing on each auto parts to make them have a unique identity, and the fake auto parts can not exist in Fujian Province. So it can improve the vehicle more safety, and protect the rights and interests of auto parts’manufacture enterprises, sales enterprises and customers.