Abstract: To realize informatized management and three-dimensional expression for submarine pipeline inspection data and solve the shortcomings such as less intuitive display of spatial relationship between the submarine pipeline and seabed surface and difficult data consistency maintenance of map-table separation in the data processing, through analysis of submarine pipeline inspection content and data processing bprocess, the structure, data organization, overall functions and key technologies of GIS technology-based inspection information management system of submarine pipeline are discussed, and ArcEngine is used to complete system development in the NET environment to achieve unified management, query, three-dimensional display and analysis of inspection information for submarine pipeline so as to meet routine maintenance management needs of the submarine pipeline. The system has played a technical support role in the management of the Hangzhou Bay submarine pipeline inspection data, which can provide demonstration and reference to the information construction of other submarine pipeline inspection data.