Method, system and device of transmitting satellite messages

The embodiment of the invention relates to the wireless communication technical field, in particular a method, system and device of transmitting satellite messages used for receiving short messages when a terminal can not receive satellite signals. The method comprises: checking a satellite signal receiving state of a terminal by a satellite server when a satellite message is required to be sent to the terminal; and sending the satellite message to the terminal through a wireless mobile communication network when the satellite server determines that satellite transmission is unavailable according to the satellite signal receiving state of the terminal. According to the embodiment of the invention, a satellite message can be sent to a terminal through a mobile communication network so as to improve system performance; further, a satellite message sending mode can be selected according to receiving satellite signal qualities of user equipment, thereby increasing a resource utilization rate of the mobile communication network.