Abstract:3-phenoxybenzoic acid (3-PBA) with estrogen toxicity is one of the intermediate products of most pyrethroid pesticides．3-PBA is difficult to degrade in the natural environment，and threatens food safety and human health．Microbial degradation of pyrethroids and their intermediate product (3-PBA) has become a hot topic in recent years．Here，we reviewed microbial species，degrading enzymes and degradation genes，degradation pathways of 3-PBA degrading and the application of 3-PBA degradation strains．This article provides references for the study of 3-PBA degradation by microorganisms．