In recently year, radio frequency identification (RFID) technology has been applied in various areas and bring more convenient for our daily life. In tradition supermarket payments have been done by the use of barcode identification. The procedure are slow, complex and usually waste of time. Another drawback is that goods supply does not respond quick enough. In this paper, we try to build an intelligent supermarket providing the functions of auto login, consuming and charging by the use passive RFID technology. Some goods are attached with passive RFID tag and customers can do the shopping and pay the bill without cashier. In this case the supermarket can not only great reduce the personnel expense, but also bring down the selling price, which can increase the amount of business. The intelligent supermarket can renew the goods quickly by immediately updating database of goods and get the payments faster.
