With the biomass fuels widely used,the area and extent of the PAH-Contaminated soil increased quickly.Thus,the study on the remediation technology of PAH-Contaminated soil is becoming extremely urgent.Compared with physical and chemical remediation,bioremediation is cheap,effective and secondary pollution-free.Plant-microbial remediation system is the most effective technology with the largest market potential.The paper introduces in details the mechanism and application of microbial and plant-microbial remediation,and forecasts the development tendency of the bioremediation of polycyclic aromatic hydrocarbons contaminated soil.