The embodiment of the invention discloses a method and device for investigating petroleum hydrocarbon soil pollution and electronic equipment. The method comprises the steps of: arranging a measurement line and determining a measurement point in an investigated area; acquiring an apparent resistivity of the measurement point; conducting inverting according to the apparent resistivity of the measurement point to obtain a formation resistivity of the measurement point; comparing the formation resistivity of the measurement point with a corresponding formation resistivity normal value to obtain acomparison result; determining whether an area corresponding to the measurement point is a suspected polluted area according to the comparison result; and determining a petroleum hydrocarbon soil pollution area from the suspected polluted areas by use of a membrane interface probe method.