Abstract:The Internet Of Things(IOT) is to make full use of next generation IT technologies among the industries，and the technologies of Radio Frequency Identification(RFID) and Wireless Local Area Network(WLAN) are an important part of IOT. This paper describes the principles and network structures of RFID and WLAN technologies，and studies the system solutions of the joint application of them，then analyzes an application instance. Finally，this paper outlooks their market prospects. Analysis shows that，RFID and WLAN joint application，making the most of the characteristics of WLAN and RFID，can provide users with faster，and more flexible identification services，and has broad market prospects.