Abstract: To improve the transmission performance of the complex topology of FC-AE-1553 bus network, a design scheme for routing optimization of switches in FC-AE-1553 network is proposed for the distributed control network with multiple network controllers. In the distributed control network, the Dijkstra shortest path algorithm is adopted, so that each transmission line has the smallest delay, which improves the network performance. According to the FC-AE-1553 protocol, the OPNET simulation tool is used to simulate the scheme. The results show that the Dijkstra algorithm can be used to optimize the whole network, especially in the distributed control network.