Food safety blockchain utilizes the unique and non-tampered distributed ledger recording features of blockchains. It strives to build the world's largest food and drug safety public chain, builds low-level communications nodes, traceability cloud platforms, and distributed storage clouds. The service, as well as the cloud intelligence examination, intelligent outpatient robot, through the multiple sensors and real clinical data on the chain, the user's physical condition for accurate detection and bad habits supervision services.