With the rapid development of LEO satellite internet, inter-satellite laser communication link, which is the key to connect each other for the LEO large constellations, and is the base for users to access satellite internet and achieve the end- to-end communication around the world. It is different between the ring network of the GEO satellites and the LEO satellite internet, due to the high dynamics of the LEO satellite motion, the inter-satellite laser links need to reestablish continually, so it brings a lot of technology problems in the addressing mode and switching routing method along the space nodes, and is the hotspot in this field. In addition, user terminals access the satellite internet by microwave link, which needs aggregation and distribution between microwave link and laser link. It is also a key and difficult problem that needs to be urgently studied and solved.