Electrogeochemical method is a new method for searching concealed ore deposits developed in the 1970s. It includes CHIM and soil ionic conductivity method. It was regarded as a frontier topic all the time from the 1970s to the end of the 1990s. It can extract ore-forming information from ore bodies in depth, which has been confirmed through prospecting concealed ore deposits by global geologists for many years. Because CHIM developed by former Soviet Union geologists comes with heavy equipment, low working efficiency and high cost, it has not been widely used. With gradual improvement of methods and techniques, the application range of electrogeochemical method is widened for searching hidden ore deposits.