The system displays the actual physical distribution situation of the gas data collection station and sensor, sensor No. and location name with the form of electric map, at the same time, it displays real-time data of every inspection point, namely carbon monoxide concentration of this point, of course, as the concentration of this point exceeds the set pre-warning value and alarm value, this point shall give alarm with flicker of different colors, strikingly displays the gas concentration value and location and name of the occurrence place, at the same time, the system shall give out accousto-optic alarm, and nip in the bud, thus enhancing the gas pipeline management level with modern science and technology.