The invention discloses a power utilization information acquisition system based on a middle-voltage carrier technology and belongs to the field of power equipment. The power utilization information acquisition system comprises a master station end and a slave station end, wherein the master station end is provided with a reading master station, a master middle-voltage carrier machine and a mastercoupler; the reading master station and the master middle-voltage carrier machine are in bidirectional communication connection; the master middle-voltage carrier machine is connected to a middle-voltage cable through the master coupler; the master middle-voltage carrier machine is provided with a master concentrator; the slave station end is provided with an electric energy meter, a slave middle-voltage carrier machine and a slave coupler; the slave middle-voltage carrier machine is provided with a slave concentrator; the electric energy meter is connected to the slave middle-voltage carriermachine through the slave concentrator; the slave middle-voltage carrier machine is connected to the middle-voltage cable through the slave coupler. The middle-voltage carrier technology utilizes themiddle-voltage cable to carry out signal transmission and each slave station end is mounted on mountain areas, pasturing areas and the like which have no network signals or unstable network signals,so that the aim of accurately reading power utilization parameters of the electric energy meter in a long distance is realized; the reading accuracy and timeliness are improved, and missed reading orre-reading is avoided.