Abstract: With the development of the network technology for satellite communication network, the security protection technologies of satellite communication network are more and more concerned. The end-to-end authentication technology is the key of them. Considering that the present authentication protocols have low efficiency and long authentication time, in this paper, on the basis of the satellite communication network authentication model, we design a new end-to-end authentication protocol, construct a security authentication simulation system, and simulate the protocol-used voice and video business. The simulation results show that the time of security authentication wasted is much shorter than that of transmission, which reflects the high performance of our authentication protocol.