Based on characteristics of accompanying metallic minerals and wall lock alterations in six large-sized or gigantic gold deposits (fields), this paper analyses the physical prerequisite for indirect gold prospecting by using IPmethod. With the ore-prospecting work conducted in such gold deposits as Jiapigou of Jilin, Jiaojia of eastern Shandong, and Ailaoshan of Yunnan as examples, the author describes briefly the effectiveness of IPmethod in gold prospecting as well as the unfavorable factors affecting its application. It is pointed out that, though of some limitations, the IPmethod remains a fairly effective geophysical prospecting method in search for gold deposits under favorable geological-geophysical conditions. In order to raise the rate of conect detection in gold prospecting, the IPmethod should be actively used in such aspects as the search for concealed and blind deposits, the inspection of geochemical anomalies and the 1:50000 integrated geophysical-geochemical prospecting in metallogenic provinces.