The invention provides a remote data transmission system based on a carrier transfer GPRS module, which makes a concentrator data transmission device in a no-signal platform area of a basement solved by utilizing a low-voltage carrier communication scheme. A power-line carrier makes a distribution transformer in the GPRS blind zone and power-expenditure information in the platform area uploaded to a master station unit through a digital management terminal. The master station unit makes management for each substation terminal unit on a line achieved through power lines, and makes the power-expenditure information which is collected concentrated. Then the power-expenditure information is uploaded to a master station of a marketing center system in a GPRS communication way. Fast attenuation, great disturbance and other problems of the power-line carrier communication can be solved, the signal blind zone of GPRS can be made up for and the communication coverage can be expanded. Adopting an advanced multiple subcarrier modulation and demodulation technology, the remote data transmission system based on the carrier transfer GPRS module has the advantages that the data transmission ability and anti-interference ability of the carrier communication can be greatly improved, and the development of novel coding and decoding technique can be achieved, thereby effectively reducing the transmission error rate and effectively ensuring stability of the communication and the transmission data.