1. Ecological colony The East China Sea has three water systems of different properties eurythermal and low-salinity water along the coastal line, high-temperature and high-salinity water in the east, low-temperature and high salinity water coming from the southern Yellow Sea bottom layer and so is rich in shrimp resource of different ecological species. Based on the ecological species inhabiting certain temperature and salinity range layers, shrimps inhabiting the ECS continental shelf can be classified into three types. 2. Faunal Characteristics As to the characteristics of shrimp fauna in the East China Sea and from the perspective of its composition, affected by the high-salinity water, tropical and warm species dominate; in the coastal water areas, affected by the land climate and freshwater from rivers, the shrimp composition was the same as that in the Yellow Sea and Bohai Sea; in the northern part affected by the lower layer cold water from the Yellow Sea, there were a few cold water species. As compared with adjacent waters, 73% of the species are commonly found in the South China Sea; 62% in Japan; 44% in South Asia; 33% in India; 29% and 20% in the Yellow Sea and Bohai Sea respectively. Hence, the shrimp fauna in East China Sea belongs to the west Pacific fauna.