Abstract:In recent years，the production and life of human lead to the destruction of marine resources and the marine environment，which have attracted much attention in the relevant domestic academic fields.Thus，monitoring the changes of the organisms in the sea timely and effectively，guiding the improvement of the marine environment and minimizing the damage become more and more important.Benzo（a）pyrene（B（a）P）is a kind of polycyclic aromatic compounds which has strong carcinogenic.The benzo（a）pyrene residue in aquatic animals and their products has attracted increasing attention with the frequent marine environmental pollution incidents.This article reviewed the harmful effects，sources，pretreatment techniques，detecting methods，standardization status and existing problems of benzo（a）pyrene.Then it proposed the emphasis and direction of the future research.In order to strengthen the benzo（a）pyrene monitoring in China in aquatic animals and their products，provide technical reference for the relevant standards.