Abstract: The paper collected 16 different types of water samples of the Fengfeng mining area.Using the method of isomers ratio,distribution characteristics and pollution sources of the 16 PAHs content were analyzed.The results showed that ΣPAHs in different water concentrations were significantly different, and it was surface water> mine water> coal bedrock water> shallow groundwater≥karst groundwater; the composition of PAHs in the water of surface water was mainly Flt, BaA, Pyr, BaP and InP of the middle-heavy molecular weight, and shallow groundwater, coal bedrock water, karst groundwater and mine water were mainly composed of Nap, Phe and Flu; the ratio of Any/(Any+Phe) with Flt/(Flt+Pyr) showed that the PAHs sources in surface water and karst groundwater were derived from coal and biomass combustion, at the same time, PAHs sources in shallow groundwater, coal bedrock water and mine water were derived from oil sources with coal and biomass combustion; the ecological risk assessment results showed that BaA and BbF monomers in surface water were at medium risk,the others at low risk, and simultaneously, PAHs in the shallow groundwater, coal bedrock water, karst groundwater and mine water were at low risk.