The invention relates to the technical field of food safety monitoring. The whole-process supervision system comprises a traceability supervision module, a warehouse management module, an intelligentvideo mobile supervision module, a kitchen safety supervision module, a food making process data acquisition supervision module, a disinfection online monitoring module, a reserved sample online supervision module and a canteen intelligent early warning module. According to the invention, the Internet of Things is fully utilized; big data, cloud computing, techniques for intelligent analysis of video and the like, supervision for comprehensively improving food safety, propelling food safety management modernization, procurement and acceptance from food raw materials, operation processes of processing and cooking, meal preparation, cleaning and disinfection of meal appliances, sample reservation and the like can be standardized, refined, efficient, informationized and standardized in supervision, food safety consciousness of schools and kindergarten canteens is enhanced, food safety management systems are perfected, food safety responsibility is put into practice, processing and manufacturing behaviors are standardized, and food poisoning events are prevented and controlled.