Polychlorinated biphenyls(PCBs) are one of the persistent toxic organic pollutants in the environment,which have caused serious harm to the ecological environment.Many monitoring methods for PCBs have been developed rapidly because the researchers have paid more and more attention on their perniciousness.The main analytical methods for PCBs at home and abroad in recent years are summarized in this paper,especially the investigation on determination of PCBs using electrochemical sensors.and the insufficients of these researches are also pointed out.The foreground of electrochemical sensors in application of determining PCBs are prospected．