Compared with other identification technology, RFID identification system have more advantages, such as no-contact, high degree of automation, durable and reliable, recognition speed, adapt the working environment, enabling both high speed and multi-tag identification and so on. Meanwhile, it does not need artificial view that manufactures barcode which saves Labour costs, and solved the two difficult problems in retail: out of stock and loss of goods (due to theft and supply chain to be disturbed for the loss of product).