For the two types of landfill sites including the industrial solid waste and domestic waste in Hebei Plain area, the electric identification characteristics of pollutants/landfill were determined by the combination method of "High density resistivity method + Induced polarization (IP) sounding + time spectrum IP parameters", and the spatial distribution of the contaminants delineated was consistent with the results of the borehole verification. The results show that the high density resistivity method has the advantages of high efficiency, strong anti-interference ability, and more prominent shallow information, which provides an important reference for rapid identification of the target area. The characteristics of time-spectrum IP parameters are more stable than the traditional P parameters in the identification and delineation of pollutants. The combined method is verified and supplemented in the detection of leakage pollution of industrial solid waste landfill and domestic waste landfill, and has achieved good identification effect.