Abstract: At present, the informatization and digitization construction of Underground Gas Storage (UGS) is vigorously pushed forward in China, but the storage intellectualization is still in the exploration stage. Artificial intelligence (AI) technology has been used in some links in UGS construction and operation, but no consensus and standards have been formed for the overall construction route of intelligent gas storage. Herein, the top-level design and prospective research of Intelligent Underground Gas Storages (IUGS) was carried out based on value chain analysis through the research on the status quo and intelligent process of UGS at home and abroad. In this study, the business needs in the process of storage design, production and operation were taken as the main value chain, and the intelligent technology needs in the intelligent process of gas storage were taken as the auxiliary value chain. Then, the technology system of IUGS was constructed, covering the construction scheme design of gas storages, gas reservoir engineering, injection-production simulation and optimization, and risk monitoring and evaluation of stations and gas storages (wells). Generally, the system is expected to provide a helpful idea for the construction, reconstruction and upgrading of IUGS in the future.