With the Internet of Things system rapidly development, it has being used in more and more various industries. As one of the important sensor technology, radio frequency identification (RFID) sensor becomes indispensable technology to a lot of applications. This paper analyzes the frequency characteristic in RFID and the principle of classification, focuses on design the dual frequency integrated technique, puts forward an edge positioning solution for complicated environment. This innovative design extends for most other mobile tracking, location positioning, and real time monitoring and so on fields.