Soil heavy metal pollution has become a major challenge in global soil management because of its concealment, long-term and non-degradability. Electrokinetic remediation technology is an efficient method for in-situ remediation of soil heavy metal pollution, but there are some limitations in its practical application. In this paper, the limitations of electric remediation technology (poor heavy metal dissolution ability, "focusing" effect, high energy consumption) are listed respectively, and several types of electrokinetic combined technology are compared, and the application effect of electric remediation technology in actual contaminated sites is introduced. Finally, a comprehensive review and synthesis of the pertinent research on electric remediation technology is conducted.