This study realized the design of wireless sensor network food monitoring system based on WSN using Zigbee technology and RSSI ranging technology. Food safety monitoring and control system is designed to control a market point module for the establishment and management of the design and implementation of two modules. Modern micro sensor has low cost, low power characteristic, it can realize the wireless communication and computing performance, a large number of the sensors organizations constitute the wireless sensor network. The system has been tested and established on the basis of the system architecture.