With special refrence to the usefulness of magnetic prospecting tor some deposits of base and precious metals in Yunan province, the well-established contribution of the magnetic exploration to searching for mineral resources related to basic, ultra-basic and medium-acidic rocks, such as copper, molybdenum, nickel, platinum, tin and wolfram is described in this paper. Particularly it is worth while to notice the experience in using magnetic data to plan exploration lines, allowing successful exploration for the main body of BMZmining area. Having analysed the statistical data concerning aeromagnetic anomalies, the author pointed out that even better results could be expected in the further magnetic prospecting for this type of mineral resources.