Abstract: In order to improve the efficiency of resource utilization and respond to the development direction of green building, this paper studies the energy exchange system of energy storage pipe pile of cast-in-place large diameter foundation pit. Combined with the engineering example, the available cold and heat calculation is carried out, and the finite element software is used to numerically model and analyze the temperature field development law of the soil around the energy exchange system with and without ice. The results show that: the influence range of pipe pile on the surrounding soil temperature gradually increases from bottom to top and is divided into two parts. The temperature load of pipe pile in the upper part is higher than the original ground temperature, and the pipe pile releases heat to the ground temperature. The temperature load of pipe pile in the lower part is lower than the original ground temperature, and the pipe pile absorbs heat and releases cooling capacity. The influence range of pipe pile on soil within 7 h with or without ice is within 1 m around the pile. The pile temperature is kept between 16 ℃ and 36 ℃ in the case of with or without ice, which has no effect on the pile reinforced concrete structure. Different thermal conductivity and specific heat have almost no effect on soil temperature change, and the effect on soil temperature change has not been manifested due to the short loading time. The change of original ground temperature has a significant effect on the temperature field. In conclusion, a small change in pile temperature has no influence on the reinforced concrete structure, and the influence on the surrounding soil can be ignored. In practical application, attention should be paid to avoid the adverse effects caused by a large change in pile temperature.