Abstract: Based on the discussion about the general principles of geophysical data study and combined with practical work,this paper describes the effectiveness of ore-bearing fractured zone covered by high-precision magnetic measurement shows some successful cases of indirect prospecting and enumerates the rock related to ore-forming and ore-controlling,which delineated by gravity and magnetism method.Equalattention should be paid to the direct and indirect ore prospecting,and the view point such as geophysical weak gentle anomaly and the‘residual anomaly' interpretation should be taken into consideration.In addition,moreattention should be paid to re-inter pretation after drilling verification,to geophy sical and geochemical well-logging operation,to application and research on new technologies,and to new methods about mineral examination.Moreover,it is necessary to improve and expand information acquisitioning ability to the greatest degree,thus promoting the capacity of geophysical and geochemical exploration and results.