The Nagengkangqieergou Silver Deposit is a medium-low temperature hydrothermal silver deposit first discovered in the East Kunlun metallogenic belt of Qinghai Province in recent years.Through the engineering control of stream sediment survey,geological mapping,soil survey,IP intermediate gradient profiling measurement and trench exploration,and drilling,Nagengkangqieergou large-scale silver deposit was submitted.In the process of prospecting,the changing from gold to silver has been made.After determining the prospecting direction,the prospectors dare use drilling to conduct deep verification and discover thick and large silver deposits,thus making a breakthrough in prospecting for silver deposits.The discovery of this deposit has changed the previous understanding of prospecting for non-formed silver deposits in the East Kunlun area of Qinghai Province.Through systematic summary,it is concluded that prospecting areas are selected in combination with the favorable metallogenic geological background of ore deposits and the comprehensive anomalous HS6 of stream sediments combining Ag,Sb,As,Sn,Mn and Cu.The selection of prospecting methods is based on the typical characteristics of ore deposits.The application of key techniques and methods and the innovative understanding of prospecting ideas are the main enlightenment from the discovery and exploration of Nagengkangqieergou Silver Deposit.