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This paper integrate wireless sensor networks ideology of Internet of things to realize the real-time tracking of goods information and code reading. Completion the function of supermarket chain management information system account of goods, refresh of commodity information instantly. It solve the tedious process of registration and settlement of goods, out of storage records, and transmit directly through the network showing the commodity quantity of purchased and sold. At the same time, make a study on the upper and lower limits of inventory and give a reference mathematical model. It solve the problem that shortages or excess of real-fresh products and one-time use of product loss to the enterprise. At all, this system achieves the supermarket enterprise faster, efficient and reliable management.