Dalagou silver polymetallic mineralization area is located in Daxing'anling metallogenic belt. It is one of the important areas of non-ferrous metal resources exploration. Metallogenic conditions in this area are very good with good prospecting prospect. Several nonferrous metal ore deposits have been found in the same metallogenic belt in this area. Through comprehensive research and analysis on regional geology, geology in mining area and geophysical anomalies, geological characteristics of mineralized bodies in Dalagou silver polymetallic mineralization zone in Tuquan county have been illustrated, prospecting marks have been summarized, and mineralization prospect and prospecting direction have been put forward. It will provide a basis for the next exploration in this area.