Abstract: In order to study the development and utilization potential of ground-coupled heat pump system in Jiangsu section of Huaihe River ecological economic belt,the variation trend of underground temperature field during the operation of ground-coupled heat pump system is simulated and predicted by means of numerical simulation. Through this simulation,two development and utilization schemes of ground-coupled heat pump system that can alleviate the thermal accumulation problem are determined,and on this basis,the development and utilization potential of the ground-coupled heat pump system is evaluated. The results show that the average cooling potential of the study area is 7412.35 and 37863.31 m~2/km~2 in summer and the average heating potential is 16660.87 and 81316.84 m~2/km~2 in winter under the two schemes.