Abstract: In Mesh networks，the mobility of node and the multi-hop of data transmission，the quality and safety of routing protocol became the critical factors in weighing the performance of Mesh network.It is necessary to find more efficacious and safer routing protocol instantly，and it can adapt the topology change on network.Because the actual routing protocol of Mesh network didn’t consider the safety of the protocol itself.In this paper，a new scheme of secure multi-path routing protocol based on authentication is proposed.The safety mechanism is appended in the process of setting up the multi-path.The analysis shows that the routing algorithm can keep the safety of routing protocol on the base of supporting the balance of loading，enhancing the throughput in whole and increasing the ability of error tolerance.Beside，in this way，the node-disjoint between multi-paths can reduce the probability of path collapses and provide higher reliability for data transmission.