Mapo-Shanshenmiao Mn-Ag deposit situated in Lingqiu county, Shanxi province, is a poly metallic deposit with associated Pb and Zn. This deposit is located in west end of Yanliao fold zone, controlled by Yanshanian volcanics and faults. The ore bodies occur as stratified or lentoid or veinlike. The source of metals is derived from Gaoyuzhuang formation dolomite. The Mesozoic volcanic activities enriched them in the fracture zone around volcanic structure. It is a sedimentary thermal modification type. Mn-Ag deposits are rare in China. It is of prospective market, large resource and convenient mine development condition, indicating a good development prospect.