Abstract: This paper studied the differences in cooperation ability and movement direction of research nodes, and considered the candidate relay nodes comprehensively. On this basis, a BOMPA routing protocol based on node cooperation degree and motion direction was proposed, which made the forwarding nodes more evenly distributed, improved the transmission efficiency, and reduced the network burden and network overhead. Compared with the traditional routing methods, such as Epidemic, Bubble Rap and ETNS, the experimental results show that this method improves the utilization of nodes, reduces the data transmission delay, and improves the overall efficiency of the network.