With the development of free space laser communication technology and the demand of anti-jamming, high-speed integrated information network, the research of high-rate laser communication networking technology is urgent. Based on the analysis of the technical difficulty in space laser communication networking, a new laser communication networking solution is proposed. Wide-angle beam expanders and double optical wedge groups are incorporated as antenna for the multi-point optical laser communication system. The wide-angle beam expander can collect the target signal lights in different directions, and the double optical wedge group can dynamically track different targets simultaneously. The overall scheme of multipoint free space laser communications based on this optical antenna is studied. The optical antenna, relay optical subsystem, transceiver subsystem and so on are designed. The scheme provides a new technical pathway for space laser communication network.