Dioxin-like PCBs are multimedia pollutants, which are ubiquitous in the environment at normally very low concentrations. Their main sources are chemical, industrial and combustion processes. It is important to understand their environmental behavior, such as transport, deposition, sink and degradation because of the toxicity and bioaccumulation of them. In this study, the 12 species of PCBs among the 209 species of PCBs in fish were researched and discussed. We selected one of the samples and then also analyzed PCBs level of spawn and liver of the sample and examined a degree of bioaccumulation of PCBs and possibility of handing down. The PCBs levels in carp and crusian carp muscle were 1.31pgWHO-TEQ/g and 0.75pgWHO-TEQ /g, respectively. In carnivorous fishes, the PCBs level of Erythroculter erythropterus Basilewsky was 3.62pgWHO-TEQ/g, ussurian bullhead 10.85pgWHO-TEQ/g, Korean bullhead 1.24pgWHO-TEQ/g and Far Eastern catfish 2.92pgWHO-TEQ/g. The PCBs WHO-TEQ value of liver and spawn in Far Eastern catfish was about 1.5times and 1.9times as much as that of muscle respectively.