Abstract:Shandong Province is rich in deep sandstone thermal reservoir resources, and the development and utilization of thermal reservoir play an important role in promoting regional economic and social development. If deep thermal reservoir can not be paid attention to moderate and orderly development, geological environment problems can be caused, such as regional land subsidence after exceeding its critical amount. Therefore, it is of great significance to study geological environment deformation problem caused by the development of deep sandstone thermal reservoir. In this paper, geological environment impact of thermal reservoir exploitation in typical deep sandstone thermal reservoir area in northern Shandong province has been studied furthurly. The settlement of thermal reservoir caused by factors, such as mining output and production horizon has been determined, and the contribution of thermal reservoir subsidence to total land subsidence in this area has been analyzed. It will provide some references and basis for further understanding geological environment effect of deep sandstone thermal reservoir in northern Shandong province and for rational development of deep thermal reservoir resources.