We evaluated variations of in fish community structure in the Bohai Sea using data collected during trawl surveys in August 2010-2014. The dominant species, individual mean body weight, relative resource, Jaccard's similarity coefficient, an abundance biomass comparison curve and multivariate statistical analyses were used to evaluate the data. The results showed that the abundance of all fish species decreased from 2010 to 2013, the abundance of a few species increased in 2014, but the abundance of all warm-temperate species decreased from 2010 to 2014. The dominant fish species changed drastically from 2010 to 2014, and the dominant demersal fish species changed from sp., whereas the dominant pelagic fish species changed from phytoplankton, to Engraulis japonicus, >0.05) among mean station resource were observed for any of the fish during 2010-2014, and the mean station resource data had hetero generous variances (<0.05) during 2010-2014, except data of all fish between 2013 and 2014, and those of demersal fish between 2010 and 2014. The abundance biomass comparisons and statistical W values showed that the fish community was stable in 2010, relatively stable in 2012, but disturbed in 2014, and seriously disturbed in 2013.The annual relative resource and distribution of the five fish species with the highest contribution rate to similarity in the groups and differences between groups changed significantly. Mean weight of all fish decreased from 2010 to 2014, as the sizes of all fish in the Bohai Sea has tended to decrease in recent years. In conclusion, the fish community in the Bohai Sea changed dramatically from 2010 to 2014 and remains in a disturbed state.