This paper studied the geological features of Lamahan deposit,and used the elaborate technology of geophysical exploration to examine the mineralizing belts and promising section,to confirm ore body's distribution and configuration in the space of 600 meters above sea-level.The minerogenetic law and mineral-searching indications were summarized and ore-forming model was founded.With some upper and underground engineering to validate the exploration results,abundance and thickness of the ore body were gotten.The study indicates that Lamahan silver-lead deposit has a good polymetalic perspective.