To improve the efficiency and operation efficiency of gas pipeline network information management, the characteristics of the data of gas pipeline network is analyzed, the gas pipeline network data is study, and its storage model and organization ways was applied in gas pipeline network to gain information, the model of gas pipeline network is set up and. Base on analysis the gas network GIS system top entity relation, a gas pipeline GIS information system function structure is established. After The system is apply to the xi’an gas company, the management level of the company has improved. In the same time, the system has good expansion character to lay a foundation for the system exploitation.