In order to solve the problems of tracking and tracing during transport in the food cold chain logistics,a logistics solution based on internet of things technology was proposed.A tracking and tracing system in cold chain logistics was established,combining the technigues of radio frequency identification (RFID) and wireless sensor network (WSN).In the system,RFID technology was utilized to achieve food tracing,and WSN was used to achieve real-time monitoring of environmental information.Combining with global positioning system (GPS),the means of transport were located,and taking advantage of geographic information system (GIS),the means of transport were supervised.The system ensures maximum protection of freshness,luster and safety of refrigerated food by the intelligent tracking and tracing of food cold chain logistics.