The lack of nearby offshore field activities has led to disadvantages for the Japanese offshore technology R&D. Offshore technology is a field based technology comprised of many discipline and phase. Thus, the consideration of both deep specialization and the broad system integration are necessary. We define an important aspect of offshore technology as “Integrated Ocean Engineering”, and analyzed elements that are essential to achieve its R&D. We define six elements that need to be implemented in the research activity. From the system science perspective, needs identification, connection of basic science and applied research, and integration of technology for implementation must be considered. Considering the unique features of offshore technology, basic science in ocean engineering, demonstration in actual ocean and expectation to future market are also important elements. Existing R&D activities in Japan do not incorporate these elements together, mainly due to the lack of strong driving force. We propose a new structure of organizing research, namely co-creation platform.