In order to solve the problems of large delay and low channel utilization of existing dynamic bandwidth allocation (DBA) algorithms in fiber-wireless(FiWi) networks, a low latency distributed DBA(LLD-DBA) algorithm is proposed. Each polling cycle of LLD-DBA consists of two sub-cycles of wireless reporting and upstream data transmission, which can be carried out in parallel on the wireless channel and the upstream channel, respectively. The bidirectional polling is adopted in the sub-cycle of wireless reporting, and each node can transmit the Gate frame to its neighbor node and upload its data in parallel. Extensive simulation results show that compared with the existing algorithms, the proposed algorithm can reduce the average packet delay, average queue length of nodes, and improve the utilization of upstream channel.