According to characteristics of Niujuan Ag-Au deposit and Yingfang Ag-Pb-Zn deposit in the north Hebei province and relation between them it is considered that the Ag-Au and Pb-Zn mineralization occur at the same horizon originally; the silicified body and the silicified granitic breccia in west of Yingfang Pb-Zn deposit are formed by the pre-mineralization fault F1;the right hand overlapping of post-mineralization fault F2 buried Ag-Au mineralization to depth and overthrusted the Pb-Zn mineralization to shallow and the two type mineralization under truncation of F2 may remain at depth. Therefore, prospecting of Pb-Zn ore bodies to depth of Niujuan Ag-Au deposit and prospecting of Ag-Au ore bodies to depth of Yingfang Pb-Zn deposit are put forward in this paper.oft-com:office:office" />