Food traceability is an important measure to ensure food safety.Currently,food traceability is mainly refers to product traceability,it cannot clearly define the mechanism of food hazards and the occurrence of conditions.The concept of hazard traceability was put forward.The relationship and difference between product traceability and hazard traceability were introduced;the definition,principle and composed elements of hazard traceability were studied and discussed,providing theoretical guidance for supervision and management of food regulator and food producers and processors establishing and implementing the system which SN/T1443.1 Food Safety Management System Requirements is adopted as the official validation basis for export enterprises.