The utility model discloses a heat supply pipe network reveals monitoring and positioning system based on geographic information, include: follow the sensing line that leaks hunting that heat supply pipe network laid, at least one sensor that leaks hunting, the sensor that leaks hunting includes data acquisition module and data transmission module, at least one monitors the sub -station, with every monitoring sub -station signal connection's monitoring devices, monitoring devices include the server and with actuating mechanism, indication mechanism and communication mechanism that the server electricity is connected, communication mechanism and every monitoring sub -station signal connection. The utility model discloses a lay edge leakage sensing line on heat supply pipe network to setting up interconnect's edge leakage sensor, monitoring sub -station, with data transmission to monitoring devices, handling assay at last, real -time supervision reveals information, and a time monitoring is to revealing and confirming to reveal the position when taking place to leak, and degree of automation is high, and the accuracy is convenient.