The apparent resistivity and IP survey of single-hole multi-electrode arrayis a borehole eleotrical method for detecting deep-seated concealed ore depositsin areas of low resistivity and thick overburden. This paper describes its workingtechniques including borehole survey system, survey parameters and basic dia-glams as well as general regulations for interpretation and effects of its initialapplication. This method can be used by field logging parties and groups ac-cording to specific circumstances.