Satellite Internet is a new type of network, which can form a large-scale network by launching a certain number of satellites to provide broadband Internet access and other communication services to terminals on the ground and in the air, so as to radiate the whole world and build a large-scale satellite system with real-time information processing function. Satellite Internet integrates the advantages of satellite coverage, which can achieve global signal coverage and solve the problem of 5G base station signal coverage. In this paper, the convergence of satellite Internet and 5G are studied. Firstly, the current research status of satellite Internet is introduced, and the future development trend of satellite Internet is summarized. Three ways of convergence between satellite network and 5G are proposed. Finally, the possible application scenarios of satellite Internet are proposed.