Abstract: Scheduling scheme is an important part in Bluetooth piconets. The pure round-robin polling scheme of Bluetooth has a significant impact on the system performance. An fair and efficient dynamic polling scheme was proposed-double-tokens dynamic polling scheme. The scheme has two important points. One is that all slaves are visited by the pseudo-random order in order to solve the unfairness among all slaves. The other is that the master-slave which holds tokens is scheduled first to reduce the length of the polling cycles. Previously-proposed polling schemes for Bluetooth were discussed. The scheme excels in throughput and delay behavior, and has a good fairness.