Abstract: The geology characteristics in DaYiShan were analyzed and the mineral deposit geochemical-geophysical characteristics were confirmed. Sn、Pb、Zn、Cu、As、B and datolite were found in explored aera. The boron deposit and datolite deposit were medium-sized and man-sized deposit, separately. The metallogenic geology condiation and ore-controlling factors were discussed. The exploration indication in mineral area was explained by tin deposit.