Based on the ArcGIS geographic information system and the ORACLE database management system, this paper reports our studies on the technology of Marine Engineering Geological Exploration Information System (MEGEIS). By analyzing system structure, designing function modules and discussing data management, this paper systematically proposes a framework of technology to integrate, manage, and analyze the seabed information comprehensively. Then, the technology is applied to the design and development of the Bohai Sea Oilfield Paradigm Area Information System. The system can not only meet the practical demands of marine resources exploration and exploitation in the Bohai Sea oilfield, but also serve as a preparatory work in theory and technology for the realization of the 'Digital Seabed'.