Abstract: The Sandaowanzi gold deposit, located in the southeast of the Yanshanian Daxinganling metallogenic belt, is an epithermal-mesothermal volcanic type of quartz ore with poor sulfide. Study on the characteristics of geology, geophysics, geochemistry, type of ore, stages of mineralization, fluid inclusions and stable isotopes of the deposit, the main prospecting indicators for the deposit are determined as poor sulfide quartz vein, NW-trending tensile fault, sillicification, high resistivity electric field, soil anomalies of Au and Ag with As and Sb elements, low-medium ore-forming temperature, medium salinity, meteoric water-dominated ore-forming fluid and mantle-derived sulfur which are significant in searching deposits of the same type in the metallogenic belt.