The geographical potential of the Riau Island has an area of 251,610 sq km and 96 percent of which is the ocean and only 4 percent of the land. Since the formation of the Riau Islands Province in 2002, the wealth of marine resources has not received widespread, serious, and serious attention. At the same time, the Riau Islands Province has a very large marine wealth. This causes the Riau Islands to have the potential and competitiveness of wealth in the seas. The people of the Riau Islands must be aware of potential planning and problems and recognize plans for improvement for the benefit of the community. Therefore, a plan that is logical, realistic, implementable, flexible, and acceptable to society. The hierarchy of potential space is formed based on the functions that surround it. The purpose of this research is to reveal the hierarchy, public awareness, maritime potential in the marine area that can be worked on in the use of marine space, fisheries, mining, and tourism. This research is descriptive-analytical and based on theoretical and empirical elaboration. This approach is to examine the maritime potential space of the Riau Islands to get a reference for the interpretation of theoretical relationships from an empirical condition.