The longest queue first scheduled assembly (LQF-SA) mechanism was proposed,where burst assembly and burst scheduling for optical burst-switching networks were integrated. The proposed mechanism,ingress edge nodes have been multipled assembly queues where IP packets were stored according to their egresses and QoS classes. Among these queues,the longest one was scheduled to assemble bursts by a scheduler at a fixed interval. In real networks,traffic usually distributed nonuniformly and there existed heavier traffic between some source and destination pairs. Simulation results show that LQF-SA could adapt well to the non-uniform traffic profiles. Furthermore,even under uniform traffic,LQF-SA is also super to round-robin scheduled assembly (RR-SA) in terms of burst size distribution,assembly efficiency and burst loss rate.