Tangshan Bay has been significantly affected by human activities.In order to research the situation and diversity of fishery resources community in Tangshan Bay,the species composition,spatial distribution,biodiversity,dominant species and ABC curves of the fishery resources were analyzed based on the bottom trawl survey data in May,August and November,2012.The results showed that 59 species were collected in the investigations,including 27 species of fishes,17 species of crustaceans,7 species of shell-fish,4 species of echinodermata,3 species of cephalopoda and 1 species of polychaetes;there were 35 species of the catch in spring,36 species in summer and 37 species in autumn;the catch rates(mass)in spring,summer and autumn were 3.50,13.68 and 16.99 kg/h,respectively.The study showed:(1)The catch rates and compositions in different seasons were obviously different.The biomass of cephalopods occupied the first place and the biomass of fish and crustaceans was slightly lower than cephalopods in spring;the biomass of crustaceans occupied the first place and the biomass of fish became the second in summer;the biomass of fish occupied first place and the biomass of crustaceans became second in autumn.(2)The spatial distribution of the catch rate showed significantly seasonal variation,the catch rate of the shallower waters was higher than that of the deepwater area in spring,while the deepwater area was higher than the shallower waters in summer.(3)The seasonal succession of dominant species was not obvious.(4)The biodiversity indices revealed that the biodiversity indices in spring were higher compared with those in summer and autumn,and the biodiversity indices in the shallow waters were higher compared with those in deepwater area.(5)The ABC curves indicated that the present community in Tangshan Bay was disturbed.