Abstract: The paper proposes a novel RFID-WSN model with three-layer structure which consists of ST (Sensor-Tag) node,RR (Reader-Relay)and the base station. It includes information collection layer, information filtering layer and information analysis layer, and uses XML file format. In the information collection layer,the algorithm1 implements the function of filtering packet.In the information filtering layer,in step Tx_kill (ni) of the algorithm 2 the redundant data is filtered out by comparing the quality and the times of transmitting original data Uni. In the algorithm3 of information analysis layer, setting threshold value determines the transmission queue and average of packet. Finally, the example shows the way of working and superiority of the model.