Soil geochemical survey was carried out in Property A in Kasempa of Northwestern Province of Zambia, and the distribution, concentration, correlation, and fitness of single elements Cu, Co, Ni, Au, Ag, As, Pb and Zn in the surveying area were analyzed. It is considered that the best prospective guide elements are Cu-Ni-As-Co-Zn, so a composite anomaly of Cu-Ni-As-Co-Zn numbered as Ht-1 was delineated with weighting method, which is believed to be an anomaly related to mineralization. Later it was found that anomalies with magnetic high, high polarization and low electric resistance were consistent with the geochemical anomalies through IP survey and high-precision magnetic survey. Two verification holes were drilled and intersected the commercial orebody, which led to the discovery of a medium-size copper polymetallic deposit.