Abstract: Dry hot rocks are innovative and renewable green energy, with the characteristics of huge reserve and wide range of utilization. It is of great importance to develop and utilize the dry hot rocks. Finding out a suitable project site is the key to the successful exploration of dry hot rocks under the current situation in China. Focusing on the key issue of project site selection for dry hot rocks, the authors summarized the site selection experience of dry hot rocks exploration at home and abroad. From the aspects of resource, technology, safety, and economy, this research established an index system for site selection assessment including 4 index layers and 20 indicators. Based on the analytic hierarchy process, the weight of each evaluation index is calculated. In addition, a site selection assessment method is proposed on the basis of analytic hierarchy process and comprehensive scoring method. The index system and assessment method proposed in this study have some guiding significance for project site selection.