The invention provides an intelligent low-voltage platform area power line automatic topology system, comprising: a line acquisition terminal installed on the platform area power line and connected with a concentrator, which is used for acquiring signals on the power line according to a control command sent by the concentrator, demodulating and processing the collected signals to generate an identification signal; and a low-voltage platform area power line automatic topology system. A concentrator connected to the processing terminal, configured to send a control command to the line acquisition terminal according to the topology command sent by the processing terminal; acquiring an identification signal generated by a line acquisition terminal, and generating a logic relationship of a power line topology in a station area according to the identification signal; a processing terminal for generating a topology instruction. The logic relation of the power line topology generated by the concentrator is obtained, and the power line topology diagram is generated according to the logic relation of the power line topology. The display terminal is connected with the processing terminal andis used for displaying the power line topology diagram of the stage area. The invention has high accuracy and high intelligence level.