In recent years, with the development of wireless ad hoc networks and Beidou communication satellites, the high-speed mobility of nodes and the high dynamics of network topology in complex environments have brought new challenges to the communication networking technology of ad hoc networks. Aiming at the fact that the existing multi-path routing of mobile ad hoc networks cannot guarantee path stability and balance network load, and cannot meet the low-latency requirements of Beidou communication, this paper studies a method using path survival time as path by analyzing the AOMDV protocol in ad hoc networks. Selection criteria and BDS-AOMDV protocol that adapts to the low latency of Beidou communication. At the same time, this paper adopts the node load coefficient to measure the node load degree, and the link load coefficient represents the link load degree, and designs the multi-path routing algorithm of BDS-AOMDV. Finally, the paper builds an ad hoc network simulation platform using MATLAB. The simulation results show that the algorithm can effectively reduce the number of route discovery, ensure the path stability, and reduce the packet transmission delay.