Abstract: The geological features，ore-formation conditions and ore-controlling factors of Lamahan Ag-Pb-Zn polymetallic deposit were identified.Several geophysical regional survey and depth sounding techniques were used in detailed 3D geophysical exploration of mineralized veins and forecasted areas to find the spatial distribution law and scale of mineralized geological bodies.The ore-formation law and geological ore prospecting indicators in this area were summarized and ore-forming and ore prospecting models were established，which are of important significance to guiding the regional prospecting.The geophysical exploration results were verified by small amount of surface and depth engineering and the resource prospect of this area was evaluated.

Key words: Geological features of deposit, Geophysical depth sounding, Ore-formation and ore prospecting models, Lamahan Mountain