Food safety traceability is a technical tool that can effectively prevent and improve food safety problems. This paper makes an analysis of the current traceability methods and reviews the progress of catering food traceability. This paper introduced the Internet of Things, RFID electronic tags, two-dimensional code tags and other technologies, elaborated on the establishment of the food safety traceability system in conjunction with related technologies. Taking the traceability of catering and food safety as an example, The paper performs system management of catering food in the production of raw meat products, production of raw vegetable materials, procurement of raw materials, and supplementary cooking materials as well as the cooking process. It pioneers the use of single product management to achieve accurate traceability, which has realized the monitoring and management of food warehousing and logistics through sensor equipment. Accurate traceability of the sales of goods can be achieved on mobile phone app. It analyzed and designed the various links in the traceability system of catering and food safety. Then, the implementation methods and tasks undertaken in each link were given, which verified the significance of using this system.
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