Abstract: Underground gas storage is an integrated discipline which contains geology, drilling, surface engineering and economic evaluation, so it involves considerable and substantial information and data. It is very important to set up an information and data management platform for gas storage. Considering CNPC's demands for gas storage, the CNPC underground gas storage information and data management platform is established by using Oracle database and.Net design technology. The platform is composed of seven functional modules, including data acquisition, data processing, data auditing, data inquiry, report inquiry, curve inquiry and system management. This platform can be used to acquire, store, calculate, count and analyze the static and dynamic data of gas storages in operation, enabling the information management to be normalized, systematic and scientific. Moreover, it can provide effective technical support for the design, evaluation and operational management of gas storages.