Many mineralized spots of gold and copper have been found in alkaline rock masses and their surroundings, demonstrating superior ore- forming geological conditions. The research shows that the formation and distribution of gold and copper deposits are closely related to the Hongshan rock mass. The gold mineralization is mainly distributed in the volcanic tuff on the north side of the rock mass, while copper mineralization is widely distributed in the central area of the rock mass. It has not been intensively studied due to high degree of erosion of rock mass. Deep prospecting potential of copper- gold mineralization is also not clear and needs to analyzed. According to the ‘cover layer’ thickness restoration method of the rock mass, relative uplift denudation degree identification method, planation surface method and the apatite fission track method, the conclusions of different discrimination methods is basically consistent. The results show that the denudation degree of central region of the Hongshan rock mass is the largest, about 2 km. The degree of denudation decreases gradually along both sides of the rock mass. Based on the above analysis, the prospecting strategy for the copper and gold deposits is proposed. The favorable prospecting area of gold mineralization distribute in the volcanic tuff which lies on the southern side of the rock mass. However, the copper mineralization in the central part of the rock mass is not optimistic.