Abstract: The world has attached more and more importance to the offshore oil gas production, and the total production raised quickly. The large oil field have been found in ten years nearly account for 60% on offshore. Offshore oil gas exploration and development have become part of the strategic development of all oil companies in the world. Offshore production is characteristic of high investment, high risk, high technology and high benefit. Therefore adapted development system and technology is important to reduce investment of offshore production. Now the world large companies have developed kinds of development system to adapt to different ocean, different offshore condition and different output. Especially in the last few years, floating production system has been, which not only adapted to deep water production, but also adapted to shallow water production.