Sub-District Panarukan, Distric of Situbondo has many food processing and non-food processing centers based on marine resources, all of which reaches 197 business units which include: Craft, Fish Cracker, Fish Chips, Shrimp paste and rengginang fish. The socio-economic phenomena of coastal communities should provide added value, absorb a lot of unemployment, but the people are still not prosperous in economically. The purposes of this study are to: Analyze the value added of resource-based on agroindustry, and to know the opportunity of marine resource development based agroindustry. The type of research used is descriptive with survey technique. Furthermore, the excavated data consists of qualitative and quantitative data which collected by using depth interview technique and the determination of respondents is done by simple random sampling technique. In order to answer the first, and second, the Hayami value-added analysis, and cost efficiency (R/C-Ratio) are used. The result of the research revealed that the ratio of added value of agribusiness activity of marine basis is 37,5% (value added ratio 15% - 40%), then the added value is classified. While the business opportunity of agribusiness activity in the research area is very big which indicated the value of R / C reach 1.95. If marine resource-based agroindustry activities in the research area are intervened with a touch of modern science-based management, then the value-added ratio potentially reaches more than 40% (> 40% high added value categories).