The invention relates to a Beidou-based power distribution communication device and a communication method thereof. The Beidou-based power distribution communication device comprises a processing module and a transceiving module, the processing module comprises a microprocessor and a communication interface, wherein the microprocessor is used for processing the power distribution information transmission protocol and the Beidou short message communication protocol to be mutually converted, and the communication interface is connected with the microprocessor; the transceiving module is used forcarrying out mutual transformation on the received baseband signals or radio-frequency signals, and sends the data to a terminal device through a Beidou short message communication link. According tothe Beidou-based power distribution communication device, the power distribution information is transmitted through Beidou short message communication, the labor cost is reduced, economic benefits are achieved; the Beidou short message communication has the characteristics of being wide in coverage range and free of signal blind areas, so that the power distribution communication device is very suitable for being used in remote areas, and the problem that in the prior art, no power distribution communication devices is suitable for remote areas is solved, meanwhile, the intelligent level of the power distribution network in the remote area is improved, and the construction of the intelligent power distribution network in the remote area is promoted.