A method of recovering communication transmission function of an aerospace vehicle. In operation, a remote control center receives, from a ground-based station, a request of recovering the communication transmission function of the aerospace vehicle being in operation and not on a ground. The request includes positioning information of the aerospace vehicle. In response to the request, the remote control center sends an instruction to an unmanned aircraft vehicle (UAV) in air. The UAV functions as an electromagnetic wave transmission relay station, and the instruction includes the positioning information of the aerospace vehicle. Thus, the UAV may track the aerospace vehicle according to the instruction, and establish a two-way communication between the remote control center and the aerospace vehicle via the UAV as the electromagnetic wave transmission relay station. Thus, the remote control center may perform recovery of the communication transmission function of the aerospace vehicle via the UAV.