In order to meet the rapid growth demand of space information transmission capacity, and in response to the development trend of high speed and large bandwidth of future satellites, a Beidou navigation network optimization method based on laser microwave hybrid inter satellite links is proposed. The ability of inter-satellite link ranging and routing convergence efficiency of hybrid link are analyzed, and simulation is carried out to verify the effectiveness of collaborative ranging and collaborative management methods in improving the efficiency of hybrid network. The simulation results show that the Ka laser cooperative ranging time is shorter than the traditional microwave network, and the maximum positioning accuracy factor(PDOP) decreases from 3.4 to 2.3. The routing convergence speed of hybrid network is faster than that of single laser network, which decreases from 41 s to about 15 s.