In order to improve the topology fault-tolerance and resource utilization of multicast routing in wireless Mesh network, the fault-tolerant deficiency of a single multicast tree was described, the optimization model was established, and then the construction method of disjoint multicast tree was proposed based on augmentation disjoint paths. In this method, the wireless link interference was used as the link weights, by which node disjoint paths between the source node and the destination nodes and among the destinations nodes were calculated. Meanwhile, the disjoint among multicast trees was maintained by calculating the augmentation disjoint paths. By simulations and comparative analysis, the success ratio of the proposed method ascended 47.13% for solving the disjoint multicast trees, and the network performance of average throughput and delay also ascended 4.91% and 5.16%, respectively, which demonstrated that the proposed method is correct and valid.
