The invention discloses a method for electrically remedying soil polluted by petroleum, relating to an electrically polluted soil restoring method and solves the problems that serious secondary pollution and damage on the originally physicochemical property can be caused during the process of electrically remedying the soil polluted by petroleum currently. In the invention, a method of combining electric remediation technology and chemical remediation technology is adopted and beta-cyclodextrin is taken as solubilizer for electric soil remediation. The pH value change of the remedied soil is small, therefore, the influence on the microorganism in the soil is smaller, and CO2 content released by breathing of the remedied soil is reduced compared with that of the remedied soil before remediation, thus well maintaining basic physicochemical property of the soil and truly realizing remediation.