Abstract: Based on the bottom trawl surveys in May of 2013, we investigated the community structure and biodiversity of nekton near Oufei Beach of Wenzhou by traditional diversity analysis, abundance-biomass comparison curves, clustering analysis and non-metric multidimensional scaling.A total of 87 species were collected, including 55 species of fish, 18 species of shrimps, 10 species of crabs and 4 species of cephalopods. The dominant species were Amblychaeturichthys hexanema, Pampus argenteus and Harpodon nehereus; the important species were Lateolabrax maculatus, Collichthys lucidus and other 15 species. The densities of nekton quantity and weight were 304.6103 indkm-2and 365.8 kgkm-2, respectively. Cluster analysis and non-metric multidimensional scaling (NMDS) analysis reveal that the nekton community could be spatially clustered into three groups. ANOSIM analysis shows very significant difference innekton species composition among all groups (R=0.463~0.807). The abundance and biomass curves (ABC) indicate that the nekton community was seriously disturbed, and the fast-growing, small-sized and opportunistic r-strategistas dominant in the nekton community. The Shannon-Wiener diversity index (H'), Pielou evenness index (J') and Margalef species richness index (D) ranged from 1.31 to 3.74, 0.33 to 0.78, and 1.80 to 5.81, respectively.