Abstract: Accurately understanding the impact of surface deformation on soil moisture caused by mining activities is of great reference significance for the green mining of coal resources in arid and semi-arid mining areas. In this study, seven mining areas in Shendong mining area were taken as the research objects, and the soil moisture status was characterized based on the soil moisture monitoring index S-SMMI, PS-InSAR technology was used to obtain the surface deformation of the mining area, and the relationship between the surface deformation and soil moisture in the mining area was quantitatively analyzed. The results show that: The surface subsidence of the well mine is a basin with the largest subsidence in the center and gradually decreasing to the surrounding area, and the overall change law of the S-SMMI mean is that the subsidence slope > subsidence edge of the subsidence basin >. Except for Well 4, the mean SMMI of the subsidence basin is lower than that of the subsidence edge, and the mean SMMI of the subsidence basin of the rest of the wells is higher than that of the subsidence edge, indicating that the soil moisture in the more severe the subsidence area is smaller, and there is a negative correlation between the two. The influence range of well mines on the surrounding soil moisture is about 3 000−5 000 m, and the farther the distance, the more stable the soil moisture condition becomes, among which the soil moisture influence area of well mines can be divided into three levels: strong influence area (0−500 m), weak influence area (500−3 000 m), and no influence area (beyond 5 000 m). For open-pit mines, before reclamation, the average S-SMMI is relatively high, and the soil moisture is low. Under the same geomorphological type, the soil moisture in the Shendong Mining Area was highest in the medium-intensity mining regions (S-SMMI=0.539) and lowest in the very high-intensity mining regions (S-SMMI=0.653). After reclamation, the surface deformation slows down, the average S-SMMI gradually decreases, and the soil moisture increases, indicating that reclamation can enhance soil moisture. In summary, the surface subsidence of underground mines has a negative impact on soil moisture, and the impact distance is about 3 000−5 000 m. After the reclamation of the open-pit mine, the surface deformation significantly decreased. This not only improved the vegetation coverage in the mining area but also helped increase soil moisture. Therefore, in the process of mining, underground mines should pay attention to the land restoration in the subsidence basin, and the open-pit mines should be repaired while mining in the process of mining, so as to prevent the further deterioration of the surface ecological environment caused by the reduction of soil moisture.