Abstract: The MLN area stands for Mianxian-Lueyang-Ningqiang area in south Shaanxi province,where the gold deposits are distributed in 3 zones,i e,the Au-Tu-Ni zone in the north,the Au-Cu and placer Au-Pt zone in the south,and the Au-polymetallic deposit zone in between Vertically,the upper Fe-Mn-U zone is in sedimentary rock and volcano-sedimentary rock,and the lower Au-Pb-Zn and Au-Cu zone is in volcanic rock and pyroclastic rock MLN area is favorable for gold mineralization The exploration is promising.