Dongying City is the core region of Yellow River Delta Efficient and Ecological Economic Zone. Land salinization in this area is so serious that it has become the dominant factor that restricts the sustainable development of agriculture. Therefore developing fishery is an important way to reuse saline land, improve ecological environment, raise living standards and promote the transformation of resource-based city in Dongying. Five efficient ecology fishery models are put forward by means of positivist study on differences of ecological environment and embryos of eco-agriculture in Dongying. They are marine capture fisheries and fishery stock enhancement and releasing, sea cucumber aquaculture, crab aquaculture, shellfish culture and recreational fishery. The total yields, value of aquatic products and net income of fishermen have increased 9.5 times, 16.2 times, 13.9 times respectively during 1992 to 2011. Meanwhile, 25 136 hectares of saline land have been reused by fishery, which has made significant ecological, economic and social performance. Various methods are applied to assess the benefits of these models. The corresponding suggestions are proposed to optimize the fishery industry in Dongying City.