The invention discloses a phase change energy pile, a ground source heat pump heat exchange system and a manufacturing method. The phase change energy pile comprises a pile body, a reinforcing cage, aheat exchange tube, concrete and a plurality of steel balls, wherein the reinforcing cage, the heat exchange tube, the concrete and the plurality of steel balls are arranged in the pile body, the heat exchange tube is fixed to the inner side of the reinforcing cage, the concrete is filled in gaps among the pile body, the reinforcing cage and the heat exchange tube, the steel balls are uniformly distributed in the concrete, phase change materials are arranged in the steel balls in a sealing mode, and a heat exchange carrier is arranged in the heat exchange tube. According to the phase change energy pile, the ground source heat pump heat exchange system and the manufacturing method, in the heat exchange tube heat carrying fluid circulation process, more energy is absorbed by and stored in the phase change materials, and meanwhile the thermal conductivity of the pile body is improved by the steel balls, so that the heat exchange efficiency of the phase change energy pile is greatly improved, the temperature change inside the pile body is uniform, the temperature difference stress is reduced, and the service life of the phase change energy pile is prolonged; and steel ball packages are adopted as coarse aggregate for pile body pouring, so that the leakage of the phase change materials can be prevented, the rigidity of the pile body can be meanwhile ensured, and the bearing capacity requirement is met.