The food safety traceability system means that in all aspects of food production, supply and marketing (including planting, breeding, production, circulation, sales and catering services, etc.), food quality and safety and related information can be traced forward (production source-consumption terminal) or backward (consumption terminal-production source), so that the whole production and operation activities of food can always be effectively monitored. The system can clarify the responsibilities, clarify the respective responsibilities of the management subject and the managed subject, and effectively dispose of food that does not meet the safety standards, thus ensuring food quality and safety.